{"id":2464,"date":"2020-01-24T21:00:41","date_gmt":"2020-01-24T12:00:41","guid":{"rendered":"https:\/\/www.bold.ne.jp\/engineer-club\/?p=2464"},"modified":"2025-11-19T09:58:42","modified_gmt":"2025-11-19T00:58:42","slug":"java-thread","status":"publish","type":"post","link":"https:\/\/www.bold.ne.jp\/engineer-club\/java-thread","title":{"rendered":"Java\u306e\u30b9\u30ec\u30c3\u30c9(Thread)\u3068\u306f\uff1f\u8907\u6570\u306e\u51e6\u7406\u3092\u540c\u6642\u306b\u52d5\u304b\u3059\u4ed5\u7d44\u307f\u300c\u30b9\u30ec\u30c3\u30c9\u300d\u306e\u6271\u3044\u65b9"},"content":{"rendered":"<p>Java\u306e\u30b9\u30ec\u30c3\u30c9<span>(thread)<\/span>\u3068\u306f\u3001<strong><\/strong><span class=\"f-marker-p\"><strong>\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u8907\u6570\u306e\u51e6\u7406\u3092\u540c\u6642\u306b\u52d5\u304b\u3059\u4ed5\u7d44\u307f<\/strong><\/span>\u3067\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u3092<span>Java<\/span>\u3067\u4f7f\u3046\u305f\u3081\u306e\u30af\u30e9\u30b9<span>java.lang.Thread<\/span>\u3092\u6307\u3059\u8a00\u8449\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3055\u3066\u3001\u591a\u304f\u306e\u4f5c\u696d\u306f\u4eba\u304c\u624b\u5206\u3051\u3059\u308c\u3070\u65e9\u304f\u7d42\u308f\u308a\u307e\u3059\u3002\u9055\u3046\u4f5c\u696d\u3067\u3042\u3063\u3066\u3082\u3001\u305d\u308c\u305e\u308c\u306e\u4f5c\u696d\u3078\u4eba\u3092\u5272\u308a\u5f53\u3066\u308c\u3070\u540c\u6642\u306b\u884c\u3048\u307e\u3059\u3002\u5f53\u7136\u3001\u4e00\u4eba\u3067\u306e\u4f5c\u696d\u3088\u308a\u52b9\u7387\u7684\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3068\u540c\u3058\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3082\u51e6\u7406\u3092\u8907\u6570\u540c\u6642\u306b\u52d5\u304b\u305b\u3070\u3001\u77ed\u3044\u6642\u9593\u3067\u52b9\u7387\u3088\u304f\u51e6\u7406\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u4ed5\u7d44\u307f\u304c\u30b9\u30ec\u30c3\u30c9\u3067\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u306f\u3001\u4eca\u3067\u306f\u3054\u304f\u5f53\u305f\u308a\u524d\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<span>Java<\/span>\u3067\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u8003\u3048\u65b9\u30fb\u4f7f\u3044\u65b9\u306e\u57fa\u672c\u304b\u3089\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3046\u4e0a\u3067\u6c17\u3092\u4ed8\u3051\u305f\u3044\u3053\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u306b\u95a2\u3059\u308b\u8a71\u984c\u306b\u3064\u3044\u3066\u3001\u30dd\u30a4\u30f3\u30c8\u3092\u7d5e\u3063\u3066\u521d\u5fc3\u8005\u5411\u3051\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u203b\u3053\u306e\u8a18\u4e8b\u306f<span>Java 13<\/span>\u6642\u70b9\u306e\u8a00\u8a9e\u4ed5\u69d8\u30fb<span>API<\/span>\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u30b5\u30f3\u30d7\u30eb\u306f<span>Java 13<\/span>\u306e\u74b0\u5883\u3067\u52d5\u4f5c\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#Java\">\uff11\uff0e\u3010Java\u3011\u30b9\u30ec\u30c3\u30c9\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u30fb\u4f7f\u3044\u65b9<\/a><ul><li><a href=\"#i\">\uff11-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u306e\u8003\u3048\u65b9<\/a><\/li><li><a href=\"#-Thread\">\uff11-\uff12\uff0eThread\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u3066\u4f7f\u3063\u3066\u307f\u308b<\/a><\/li><li><a href=\"#-ThreadRunnable\">\uff11-\uff13\uff0eThread\u30af\u30e9\u30b9\u3068Runnable\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3067\u4f7f\u3063\u3066\u307f\u308b<\/a><\/li><\/ul><\/li><li><a href=\"#JavaThread\">\uff12\uff0e\u3010Java\u3011Thread\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9<\/a><ul><li><a href=\"#-ThreadgetIdgetName\">\uff12-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u30fb\u540d\u524d\u3092\u53d6\u5f97\u3059\u308bThread.getId\/getName<\/a><\/li><li><a href=\"#-ThreadcurrentThread\">\uff12-\uff12\uff0e\u4eca\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u53d6\u5f97\u3059\u308bThread.currentThread<\/a><\/li><li><a href=\"#-Threadsleep\">\uff12-\uff13\uff0e\u4eca\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u4e00\u6642\u505c\u6b62\u3059\u308bThread.sleep<\/a><\/li><li><a href=\"#-Threadjoin\">\uff12-\uff14\uff0e\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u304c\u7d42\u308f\u308b\u306e\u3092\u5f85\u3064Thread.join<\/a><\/li><li><a href=\"#-Threadinterrupt\">\uff12-\uff15\uff0e\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u3080Thread.interrupt<\/a><\/li><li><a href=\"#-ThreadUncaughtExceptionHandler\">\uff12-\uff16\uff0e\u4f8b\u5916\u3092\u51e6\u7406\u3059\u308bThread.UncaughtExceptionHandler<\/a><\/li><\/ul><\/li><li><a href=\"#Java-2\">\uff13\uff0e\u3010Java\u3011\u30b9\u30ec\u30c3\u30c9\u95a2\u9023\u306e\u30c8\u30d4\u30c3\u30af<\/a><ul><li><a href=\"#i-2\">\uff13-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306e\u53d7\u3051\u53d6\u308a<\/a><\/li><li><a href=\"#-mainmain\">\uff13-\uff12\uff0e\u3010\u53c2\u8003\u3011main\u30e1\u30bd\u30c3\u30c9\u306fmain\u30b9\u30ec\u30c3\u30c9\u304c\u52d5\u304b\u3059<\/a><\/li><li><a href=\"#i-3\">\uff13-\uff13\uff0e\u3010\u767a\u5c55\u3011\u540c\u671f\u5316\u30fb\u6392\u4ed6\u30ed\u30c3\u30af\u306e\u8003\u3048\u65b9<\/a><\/li><li><a href=\"#-Concurrent_UtilitiesExecutorJava_15\">\uff13-\uff14\uff0e\u3010\u767a\u5c55\u3011Concurrent Utilities\u3068Executor\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af(Java 1.5\uff5e)<\/a><\/li><\/ul><\/li><li><a href=\"#i-4\">\uff14\uff0e\u307e\u3068\u3081<\/a><\/li><\/ul><\/div>\n<h2><span id=\"Java\">\uff11\uff0e\u3010Java\u3011\u30b9\u30ec\u30c3\u30c9\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u30fb\u4f7f\u3044\u65b9<\/span><\/h2>\n<p>\u3053\u3053\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u3053\u3068\u3092\u8efd\u304f\u5b66\u3093\u3067\u3001<span>Java<\/span>\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u4f53\u9a13\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<span>Java<\/span>\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u4f5c\u3063\u3066\u52d5\u304b\u3059\u3053\u3068\u306f\u3001\u3068\u3066\u3082\u7c21\u5358\u306a\u3053\u3068\u306a\u306e\u3067\u3059\u3002<\/p>\n<p>\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u304b\u3057\u305f\u3044\u51e6\u7406\u3092\u666e\u901a\u306e\u30e1\u30bd\u30c3\u30c9\u3068\u540c\u3058\u3088\u3046\u306b\u4f5c\u3063\u3066\u3001<span>java.lang.Thread<\/span>\u306b\u300c\u3053\u306e\u51e6\u7406\u3092\u52d5\u304b\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u983c\u3080\u3060\u3051\u306a\u306e\u3067\u3059\u3002<\/p>\n<h3><span id=\"i\">\uff11-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u306e\u8003\u3048\u65b9<\/span><\/h3>\n<p>\u30b9\u30ec\u30c3\u30c9<span>(thread)<\/span>\u3068\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u5358\u4f4d\u3092\u30d7\u30ed\u30b0\u30e9\u30de\u306e\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u5897\u3084\u305b\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u306f\u3001\u4e3b\u306b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u51e6\u7406\u80fd\u529b<span>(<\/span>\u7279\u306b\u3001\u30de\u30eb\u30c1\u30b3\u30a2\u3084\u30de\u30eb\u30c1\u30d7\u30ed\u30bb\u30c3\u30b5<span>)<\/span>\u3092\u6700\u5927\u9650\u306b\u751f\u304b\u3059\u305f\u3081\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u4f7f\u3044\u9053\u306f\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u9055\u3046\u3053\u3068\u3092\u540c\u6642\u306b\u884c\u3046\uff1a\u3042\u308b\u30b9\u30ec\u30c3\u30c9\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3092\u3057\u3064\u3064\u3001\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u306f\u30e6\u30fc\u30b6\u304c\u884c\u3063\u305f\u753b\u9762\u64cd\u4f5c\u3078\u306e\u51e6\u7406\u304c\u3067\u304d\u307e\u3059<\/li>\n<li>\u51e6\u7406\u306b\u304b\u304b\u308b\u6642\u9593\u3092\u77ed\u304f\u3059\u308b\uff1a\u5927\u304d\u306a\u554f\u984c\u3092\u540c\u6642\u306b\u51e6\u7406\u3067\u304d\u308b\u3088\u308a\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u5272\u3057\u3001\u5c0f\u3055\u306a\u554f\u984c\u3092\u30b9\u30ec\u30c3\u30c9\u3067\u540c\u6642\u306b\u51e6\u7406\u3057\u3066\u3001\u5168\u4f53\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059<\/li>\n<li>\u5358\u4f4d\u6642\u9593\u5f53\u305f\u308a\u306e\u51e6\u7406\u91cf\u3092\u5897\u3084\u3059\uff1a\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u30b9\u30ec\u30c3\u30c9\u3092\u540c\u6642\u306b\u52d5\u304b\u305b\u308b\u3060\u3051\u306e\u6027\u80fd\u304c\u3042\u308c\u3070\u3001\u5358\u4f4d\u6642\u9593\u5f53\u305f\u308a\u306b\u51e6\u7406\u3067\u304d\u308b\u91cf\u3092\u5897\u3084\u305b\u307e\u3059<\/li>\n<\/ul>\n<p>\u8eab\u306e\u56de\u308a\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u601d\u3044\u6d6e\u304b\u3079\u308b\u3068\u3001\u3044\u304f\u3064\u304b\u306e\u51e6\u7406\u3092\u540c\u6642\u306b\u52d5\u304b\u3057\u3066\u3044\u305d\u3046\u306a\u3082\u306e\u304c\u3042\u308b\u3067\u3057\u3087\u3046\u3002<span>WEB<\/span>\u30d6\u30e9\u30a6\u30b6\u3067\u3082\u4f55\u3067\u3082\u3001\u4eca\u3067\u306f\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u52d5\u304f\u306e\u304c\u5f53\u305f\u308a\u524d\u306a\u306e\u3067\u3059\u3002<\/p>\n<h4>\uff11-\uff11-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u3092\u30b3\u30f3\u30d3\u30cb\u3067\u4f8b\u3048\u308b\u3068<\/h4>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u4ee5\u5916\u3067\u30b9\u30ec\u30c3\u30c9\u3092\u8003\u3048\u3066\u307f\u308b\u306a\u3089\u3001\u30b3\u30f3\u30d3\u30cb\u30a8\u30f3\u30b9\u30b9\u30c8\u30a2\u3092\u601d\u3044\u6d6e\u304b\u3079\u307e\u3057\u3087\u3046\u3002\u7279\u306b\u3001\u304a\u663c\u6642\u306a\u3069\u3067\u304a\u5ba2\u3055\u3093\u3067\u3054\u3063\u305f\u8fd4\u3057\u3066\u3044\u308b\u30b3\u30f3\u30d3\u30cb\u304c\u3044\u3044\u3067\u3059\u306d\u3002<\/p>\n<p>\u30b3\u30f3\u30d3\u30cb\u306e\u30ec\u30b8\u304c<span>1<\/span>\u3064\u3060\u3051\u306a\u3089\u3001\u3059\u3050\u7cbe\u7b97\u306e\u884c\u5217\u304c\u3067\u304d\u307e\u3059\u3002\u3067\u3082\u3001\u30ec\u30b8\u304c\u8907\u6570\u3042\u308c\u3070\u3001\u7cbe\u7b97\u3092\u540c\u6642\u306b\u8907\u6570\u3067\u304d\u3066\u3001\u884c\u5217\u306f\u77ed\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u306b\u5e97\u54e1\u304c\u8907\u6570\u4eba\u3044\u308c\u3070\u3001\u9055\u3046\u4ed5\u4e8b\u304c\u540c\u6642\u306b\u3067\u304d\u307e\u3059\u3088\u306d<span>(<\/span>\u30ec\u30b8\u6253\u3061\u3084\u54c1\u51fa\u3057\u3001\u6e05\u6383\u306a\u3069<span>)<\/span>\u3002<\/p>\n<p>\u30b3\u30f3\u30d3\u30cb\u304c\u30d7\u30ed\u30b0\u30e9\u30e0\u3060\u3068\u3059\u308c\u3070\u3001\u5e97\u54e1\u304c\u30b9\u30ec\u30c3\u30c9\u3067\u3059\u3002\u5171\u901a\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u4f55\u304b\u306e\u4ed5\u4e8b\u3084\u51e6\u7406\u3092\u3059\u308b\u5358\u4f4d\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u305d\u3057\u3066\u3001\u5e97\u54e1\u306f\u3059\u3050\u306b\u306f\u5897\u3084\u305b\u307e\u305b\u3093\u304c\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u30b9\u30ec\u30c3\u30c9\u3092\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3059\u3050\u306b\u4f5c\u308a\u52d5\u304b\u305b\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3><span id=\"-Thread\">\uff11-\uff12\uff0eThread\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u3066\u4f7f\u3063\u3066\u307f\u308b<\/span><\/h3>\n<p>\u3067\u306f\u3001<span>Java<\/span>\u3067\u5b9f\u969b\u306b\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3046\u65b9\u6cd5\u306e\u4e00\u3064\u306f\u3001<span>java.lang.Thread<\/span>\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u3092\u4f5c\u308a\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3057\u3066\u52d5\u304b\u3059\u3053\u3068\u3067\u3059\u3002<\/p>\n<h4>\uff11-\uff12-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u3092<span>1<\/span>\u3064\u4f5c\u3063\u3066\u52d5\u304b\u3057\u3066\u307f\u308b<\/h4>\n<p>Thread\u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u5b9f\u884c\u3057\u305f\u3044\u51e6\u7406\u3092<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u306b\u66f8\u304d\u307e\u3059\u3002\u666e\u901a\u306b\u30e1\u30bd\u30c3\u30c9\u3078\u66f8\u3051\u308b\u3053\u3068\u3067\u3042\u308c\u3070\u3001\u4f8b\u3048\u3070\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3001\u6570\u5024\u8a08\u7b97\u306a\u3069\u3001\u5927\u62b5\u306e\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\");\r\n    }\r\n}<\/pre>\n<p>\u30b9\u30ec\u30c3\u30c9\u3092\u52d5\u304b\u3059\u306b\u306f\u3001\u3053\u306e<span>Thread<\/span>\u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3001<span>start<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002\u3053\u308c\u3060\u3051\u3067\u3001\u65b0\u3057\u3044\u30b9\u30ec\u30c3\u30c9\u304c\u751f\u6210\u3055\u308c\u3001\u305d\u306e\u30b9\u30ec\u30c3\u30c9\u3067<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u3078\u8a18\u8ff0\u3057\u305f\u51e6\u7406\u3092\u52d5\u304b\u305b\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        ThreadSample t = new ThreadSample();\r\n        t.start();\r\n    }\r\n}<\/pre>\n<p>\u3055\u3063\u305d\u304f<span>ThreadExecutor<\/span>\u3092\u52d5\u304b\u3057\u3066\u307f\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u51fa\u529b\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u304a\u3081\u3067\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002\u898b\u4e8b\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3048\u307e\u3057\u305f\u3002<\/p>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059<\/pre>\n<p>\u3053\u3053\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u306f<span>ThreadSample<\/span>\u306e<span>run<\/span>\u3092\u547c\u3073\u51fa\u3057\u3066\u3082\u3044\u306a\u3044\u306e\u306b\u3001\u6587\u5b57\u304c\u8868\u793a\u3055\u308c\u307e\u3057\u305f\u3002\u3064\u307e\u308a\u3001\u30b9\u30ec\u30c3\u30c9\u304c<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u81ea\u52d5\u3067\u547c\u3073\u51fa\u3057\u3066\u304f\u308c\u305f\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002<\/p>\n<p>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u81ea\u5206\u3067<span>run<\/span>\u3092\u547c\u3073\u51fa\u3059\u306e\u3067\u306f\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u304c\u3044\u3064<span>run<\/span>\u3092\u547c\u3073\u51fa\u3059\u304b\u306f\u6307\u793a\u3067\u304d\u305a\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u6e96\u5099\u304c\u7d42\u308f\u3063\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u547c\u3073\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3046\u4e0a\u3067\u306f\u3001\u3053\u306e\u3088\u3046\u306b\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u5236\u5fa1\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u591a\u304f\u3042\u308b\u306e\u3067\u3059\u3002\u3044\u308f\u3086\u308b\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u306f\u9055\u3046\u7b87\u6240\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/p>\n<h4>\uff11-\uff12-\uff12\uff0e\u3044\u304f\u3064\u304b\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u540c\u6642\u306b\u52d5\u304b\u3057\u3066\u307f\u308b<\/h4>\n<p>\u5148\u307b\u3069\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3092<span>1<\/span>\u3064\u4f5c\u3063\u3066\u52d5\u304b\u3057\u305f\u3060\u3051\u3067\u3057\u305f\u3002\u3067\u3082\u3001\u30b9\u30ec\u30c3\u30c9\u306f\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u540c\u6642\u306b\u52d5\u304b\u3057\u3066\u3053\u305d\u3001\u3067\u3059\u3088\u306d\u3002<\/p>\n<p>\u3067\u3059\u304b\u3089\u3001\u6b21\u306f\u30b9\u30ec\u30c3\u30c9\u3092<span>3<\/span>\u3064\u4f5c\u308a\u3001\u540c\u6642\u306b\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u3055\u3042\u3001\u3044\u3088\u3044\u3088\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3063\u307d\u304f\u306a\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\" + getName() + \"\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\");\r\n    }\r\n}<\/pre>\n<p>\u51fa\u529b\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u540c\u3058\u3060\u3068\u3001<span>3<\/span>\u3064\u306e\u5225\u3005\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u540c\u6642\u306b\u52d5\u3044\u305f\u306e\u304b\u304c\u5206\u304b\u3089\u306a\u3044\u306e\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u30e6\u30cb\u30fc\u30af\u306a\u540d\u524d\u3082\u4e00\u7dd2\u306b\u51fa\u529b\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>run\u306e\u4e2d\u3067\u547c\u3093\u3067\u3044\u308b<span>getName<\/span>\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u540d\u524d\u3092\u53d6\u5f97\u3067\u304d\u308b<span>Thread<\/span>\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<span>ThreadSample<\/span>\u306f<span>Thread<\/span>\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u3059\u304b\u3089\u3001<span>run<\/span>\u304b\u3089<span>getName<\/span>\u3092\u547c\u3073\u51fa\u305b\u308b\u306e\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        ThreadSample t1 = new ThreadSample();\r\n        ThreadSample t2 = new ThreadSample();\r\n        ThreadSample t3 = new ThreadSample();\r\n        t1.start();\r\n        t2.start();\r\n        t3.start();\r\n    }\r\n}<\/pre>\n<p>\u3067\u306f\u3001\u307e\u305f<span>ThreadExecutor<\/span>\u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9Thread-0\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\r\n\u30b9\u30ec\u30c3\u30c9Thread-2\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\r\n\u30b9\u30ec\u30c3\u30c9Thread-1\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059<\/pre>\n<p>\u3068\u3001\u3053\u306e\u3088\u3046\u306b\u9055\u3046\u30b9\u30ec\u30c3\u30c9\u540d\u304c<span>3<\/span>\u884c\u51fa\u529b\u3055\u308c\u307e\u3057\u305f\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u540c\u3058\u3067\u3082\u3001\u5b9f\u884c\u7d50\u679c\u306f\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306b\u9055\u3044\u307e\u3059\u3002\u3053\u308c\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u51e6\u7406\u3092\u52d5\u304b\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u304c\u5225\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u52d5\u304f\u6642\u306e\u30a4\u30e1\u30fc\u30b8\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u3059\u3002\u4eca\u306e\u51e6\u7406\u304b\u3089<span>3<\/span>\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u5206\u5c90\u3057\u3066\u3001\u305d\u308c\u305e\u308c\u304c\u72ec\u7acb\u3057\u3066\u52d5\u3044\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306f\u4e26\u5217\u3067\u52d5\u304f.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306f\u4e26\u5217\u3067\u52d5\u304f.png\" alt=\"\u30b9\u30ec\u30c3\u30c9\u306f\u4e26\u5217\u3067\u52d5\u304f\" width=\"1078\" height=\"809\" class=\"alignnone size-full wp-image-2466\" srcset=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306f\u4e26\u5217\u3067\u52d5\u304f.png 1078w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306f\u4e26\u5217\u3067\u52d5\u304f-768x576.png 768w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306f\u4e26\u5217\u3067\u52d5\u304f-1024x768.png 1024w\" sizes=\"(max-width: 1078px) 100vw, 1078px\" \/><\/a><\/p>\n<h3><span id=\"-ThreadRunnable\">\uff11-\uff13\uff0eThread\u30af\u30e9\u30b9\u3068<span>Runnable<\/span>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3067\u4f7f\u3063\u3066\u307f\u308b<\/span><\/h3>\n<p>\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3046\u65b9\u6cd5\u306e\u3082\u3046\u4e00\u3064\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u304b\u3057\u305f\u3044\u51e6\u7406\u3092<span>java.lang.Runnable<\/span>\u306e\u5b9f\u88c5\u30af\u30e9\u30b9\u3068\u3057\u3066\u4f5c\u308a\u3001\u305d\u306e<span>Runnable<\/span>\u3092<span>Thread<\/span>\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u52d5\u304b\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u3067\u3059\u3002\u5b9f\u969b\u306b\u306f\u3001\u3053\u3061\u3089\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>Runnable\u3068\u306f\u300c\u5b9f\u884c<span>(run)<\/span>\u3067\u304d\u308b<span>(able)<\/span>\u3082\u306e\u300d\u3068\u3044\u3046\u610f\u5473\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3067\u3001\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u306f\u623b\u308a\u5024<span>void<\/span>\u3001\u5f15\u6570\u306a\u3057\u306e<span>run<\/span>\u3060\u3051\u3067\u3059\u3002<span>Runnable<\/span>\u306f\u30b9\u30ec\u30c3\u30c9\u306b\u9650\u3089\u305a\u3001<span>Java<\/span>\u3067\u4f55\u304b\u52d5\u304b\u3057\u305f\u3044\u51e6\u7406\u3092\u8868\u73fe\u30fb\u5b9f\u88c5\u3059\u308b\u306e\u306b\u3082\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001<span>Runnable<\/span>\u3092\u4f7f\u3046\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u305d\u306e\u3082\u306e\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u304b\u3057\u305f\u3044\u51e6\u7406\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u660e\u78ba\u306b\u5206\u3051\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u5f79\u5272\u5206\u62c5\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u898b\u901a\u3057\u306e\u826f\u3055\u306b\u3082\u3064\u306a\u304c\u308b\u8003\u3048\u65b9\u3067\u3059\u3002<\/p>\n<h4>\uff11-\uff13-\uff11\uff0e1\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u547c\u3073\u51fa\u3057\u3066\u307f\u308b<\/h4>\n<p>\u3055\u3066\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<span>RunnableSample<\/span>\u306f<span>Runnable<\/span>\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002\u3084\u3063\u3066\u3044\u308b\u3053\u3068\u306f<span>Thread<\/span>\u3092\u7d99\u627f\u3057\u305f\u5834\u5408\u3068\u540c\u3058\u3067\u3001<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u88c5\u304c\u3042\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">RunnableSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class RunnableSample implements Runnable {\r\n    public void run() {\r\n        String threadName = Thread.currentThread().getName();\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\" + threadName + \"\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\");\r\n    }\r\n}<\/pre>\n<p>\u4eca\u56de\u306f\u3001<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067\u300c<span>Thread.currentThread().getName()<\/span>\u300d\u3067\u30b9\u30ec\u30c3\u30c9\u306e\u540d\u524d\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<span>Runnable<\/span>\u306f<span>Thread<\/span>\u3067\u306f\u306a\u3044\u306e\u3067\u3001<span>Thread.getName()<\/span>\u3092\u76f4\u63a5\u4f7f\u3048\u306a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>RunnableSample\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3001<span>Runnable<\/span>\u3092\u5f15\u6570\u306b\u53d6\u308b<span>Thread<\/span>\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3078\u6e21\u3057\u3066<span>Thread<\/span>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001<span>Thread<\/span>\u306e<span>start<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        RunnableSample r = new RunnableSample();\r\n        Thread t = new Thread(r); \/\/ Runnable\u3092\u30b9\u30ec\u30c3\u30c9\u306b\u6e21\u3057\u3066\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\r\n        t.start();\r\n    }\r\n}<\/pre>\n<p>\u7d50\u679c\u306f\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9Thread-0\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059<\/pre>\n<p>RunnableSample.run\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u304b\u3089\u306f\u547c\u3073\u51fa\u3057\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u5b9f\u969b\u306b\u306f\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f<span>Thread<\/span>\u3092\u7d99\u627f\u3057\u305f\u6642\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u30b9\u30ec\u30c3\u30c9\u304b\u3089<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3073\u51fa\u3055\u308c\u305f\u306e\u3067\u3059\u3002<\/p>\n<h4>\uff11-\uff13-\uff12\uff0e\u3044\u304f\u3064\u304b\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u547c\u3073\u51fa\u3057\u3066\u307f\u308b<\/h4>\n<p>\u3067\u306f\u6b21\u306b\u3001\u3044\u304f\u3064\u304b\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089<span>Runnable<\/span>\u3092\u547c\u3073\u51fa\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>RunnableSample\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3001<span>Thread<\/span>\u306e<span>Runnable<\/span>\u3092\u5f15\u6570\u306b\u53d6\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u6e21\u3057\u3066\u3001<span>Thread<\/span>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092<span>3<\/span>\u3064\u4f5c\u308a\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u3001\u30b9\u30ec\u30c3\u30c9<span>3<\/span>\u3064\u3092\u958b\u59cb\u3055\u305b\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        RunnableSample r = new RunnableSample();\r\n        Thread t1 = new Thread(r);\r\n        Thread t2 = new Thread(r);\r\n        Thread t3 = new Thread(r);\r\n        t1.start();\r\n        t2.start();\r\n        t3.start();\r\n    }\r\n}<\/pre>\n<p>\u7d50\u679c\u306f\u4ee5\u4e0b\u3067\u3059\u3002\u3053\u3053\u3067\u3001<span>RunnableSample.run<\/span>\u304c\u52d5\u3044\u305f\u6642\u306e\u30b9\u30ec\u30c3\u30c9\u540d\u306f\u3059\u3079\u3066\u9055\u3044\u307e\u3059\u3002\u3067\u3082\u3001<span>RunnableSample<\/span>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f<span>1<\/span>\u3064\u3060\u3051\u3067\u3059\u3002\u3053\u308c\u306f\u4f55\u3092\u610f\u5473\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9Thread-2\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\r\n\u30b9\u30ec\u30c3\u30c9Thread-1\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\r\n\u30b9\u30ec\u30c3\u30c9Thread-0\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059<\/pre>\n<p>\u3053\u308c\u306f\u3001<span>3<\/span>\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u52d5\u3044\u305f\u7d50\u679c\u3001\u305d\u308c\u305e\u308c\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089<span>RunnableSample.run<\/span>\u304c<span>3<\/span>\u56de\u547c\u3073\u51fa\u3055\u308c\u3001\u7d50\u679c\u3068\u3057\u3066<span>3<\/span>\u884c\u304c\u51fa\u529b\u3055\u308c\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304cRunnable\u3092\u547c\u3073\u51fa\u3059.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304cRunnable\u3092\u547c\u3073\u51fa\u3059.png\" alt=\" The thread calls Runnable\" width=\"1078\" height=\"809\" class=\"alignnone size-full wp-image-2467\" srcset=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304cRunnable\u3092\u547c\u3073\u51fa\u3059.png 1078w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304cRunnable\u3092\u547c\u3073\u51fa\u3059-768x576.png 768w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304cRunnable\u3092\u547c\u3073\u51fa\u3059-1024x768.png 1024w\" sizes=\"(max-width: 1078px) 100vw, 1078px\" \/><\/a><\/p>\n<p>\u3064\u307e\u308a\u3001\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u540c\u6642\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u306b\u9650\u3089\u305a\u3001\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u3067\u3082\u540c\u3058\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u8a00\u3048\u3070\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3084\u30af\u30e9\u30b9\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3082\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u540c\u6642\u306b\u8aad\u307f\u66f8\u304d\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u4e0a\u306e\u5b9f\u306b\u5384\u4ecb\u306a\u8ab2\u984c\u306a\u306e\u3067\u3059\u304c\u3001\u8a73\u7d30\u306f\u5f8c\u304b\u3089\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/p>\n<h2><span id=\"JavaThread\">\uff12\uff0e\u3010Java\u3011Thread\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9<\/span><\/h2>\n<p>Thread\u306b\u306f\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\u304c\u6570\u591a\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u4e2d\u3067\u3082\u3001\u6bd4\u8f03\u7684\u3088\u304f\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u51fa\u3066\u304f\u308b\u3082\u306e\u306e\u4f7f\u3044\u65b9\u3092\u3001\u7c21\u5358\u306b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3><span id=\"-ThreadgetIdgetName\">\uff12-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u30fb\u540d\u524d\u3092\u53d6\u5f97\u3059\u308b<span>Thread.getId\/getName<\/span><\/span><\/h3>\n<p>\u30b9\u30ec\u30c3\u30c9\u3078\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u306e\u305f\u3081\u306e\u6570\u5b57<span>(<\/span>\u8b58\u5225\u5b50<span>)<\/span>\u3092<span>Java<\/span>\u4eee\u60f3\u30de\u30b7\u30f3\u304c\u4e0e\u3048\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306b\u3082\u3001<span>Java<\/span>\u4eee\u60f3\u30de\u30b7\u30f3\u304c\u81ea\u52d5\u3067\u540d\u524d\u3082\u4ed8\u3051\u307e\u3059<span>(<\/span>\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u540d\u524d\u3092\u4ed8\u3051\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059<span>)<\/span>\u3002<\/p>\n<p>\u305d\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u3068\u540d\u524d\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u3001<span>Thread.getId<\/span>\u3068<span>getName<\/span>\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        Thread t1 = new Thread();\r\n        Thread t2 = new Thread();\r\n\r\n        \/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u3092\u5f97\u308b\r\n        long t1Id = t1.getId();\r\n        long t2Id = t2.getId();\r\n        \/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u540d\u524d\u3092\u5f97\u308b\r\n        String t1Name = t1.getName();\r\n        String t2Name = t2.getName();\r\n\r\n        System.out.println(\"t1\u306e\u8b58\u5225\u5b50\u306f\" + t1Id + \"\u3001\u540d\u524d\u306f\" + t1Name + \"\u3067\u3059\");\r\n        System.out.println(\"t2\u306e\u8b58\u5225\u5b50\u306f\" + t2Id + \"\u3001\u540d\u524d\u306f\" + t2Name + \"\u3067\u3059\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">t1\u306e\u8b58\u5225\u5b50\u306f12\u3001\u540d\u524d\u306fThread-0\u3067\u3059\r\nt2\u306e\u8b58\u5225\u5b50\u306f13\u3001\u540d\u524d\u306fThread-1\u3067\u3059<\/pre>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u4e2d\u3067\u306f\u3001\u4eca\u306e\u51e6\u7406\u304c\u3069\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u3044\u3066\u3044\u308b\u306e\u304b\u3092\u77e5\u308a\u305f\u3044\u6642\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u6642\u306b\u3053\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3048\u3070\u3001\u3069\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u3044\u3066\u3044\u308b\u304b\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<h3><span id=\"-ThreadcurrentThread\">\uff12-\uff12\uff0e\u4eca\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u53d6\u5f97\u3059\u308b<span>Thread.currentThread<\/span><\/span><\/h3>\n<p>Thread\u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u306a\u3089\u3001\u81ea\u5206\u81ea\u8eab\u304c\u30b9\u30ec\u30c3\u30c9\u3068\u3057\u3066\u4f55\u8005\u304b\u306f\u7c21\u5358\u306b\u5206\u304b\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u81ea\u5206\u81ea\u8eab\u304c\u30b9\u30ec\u30c3\u30c9\u306a\u306e\u3067\u3001\u81ea\u5206\u81ea\u8eab\u306e<span>getId\/getName<\/span>\u3092\u76f4\u63a5\u547c\u3073\u51fa\u305b\u3070\u3044\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        long id = getId();\r\n        String name = getName();\r\n\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u306f\" + id + \"\u3001\u540d\u524d\u306f\" + name + \"\u3067\u3059\");\r\n    }\r\n}<\/pre>\n<p>\u4e00\u65b9\u3001<span>Runnable<\/span>\u3084\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u547c\u3073\u51fa\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001\u4eca\u3069\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u3044\u3066\u3044\u308b\u306e\u304b\u306f\u3059\u3050\u306b\u306f\u5206\u304b\u308a\u307e\u305b\u3093\u3002\u307e\u305a\u4eca\u306e<span>Thread<\/span>\u3092\u4f55\u3089\u304b\u306e\u65b9\u6cd5\u3067\u6301\u3063\u3066\u3053\u306a\u3051\u308c\u3070\u3001<span>Thread.getId\/getName<\/span>\u3092\u547c\u3073\u51fa\u305b\u306a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u305d\u3093\u306a\u6642\u306b<span>Thread.currentThread<\/span>\u3092\u547c\u3073\u51fa\u305b\u3070\u3001\u4eca\u306e\u51e6\u7406\u3092\u52d5\u304b\u3057\u3066\u3044\u308b<span>Thread<\/span>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u305d\u3053\u304b\u3089<span>getId\/getName<\/span>\u3092\u547c\u3073\u51fa\u305b\u3070\u3001\u3069\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">RunnableSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class RunnableSample implements Runnable {\r\n    public void run() {\r\n        Thread t = Thread.currentThread(); \/\/ \u3053\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u52d5\u304b\u3057\u3066\u3044\u308bThread\u3092\u5f97\u308b\r\n\r\n        long id = t.getId();\r\n        String name = t.getName();\r\n\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u306f\" + id + \"\u3001\u540d\u524d\u306f\" + name + \"\u3067\u3059\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        RunnableSample r = new RunnableSample();\r\n        Thread t1 = new Thread(r);\r\n        Thread t2 = new Thread(r);\r\n        t1.start();\r\n        t2.start();\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u306f12\u3001\u540d\u524d\u306fThread-0\u3067\u3059\r\n\u30b9\u30ec\u30c3\u30c9\u306e\u8b58\u5225\u5b50\u306f13\u3001\u540d\u524d\u306fThread-1\u3067\u3059<\/pre>\n<p>RunnableSample\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u4e00\u3064\u3067\u3059\u304c\u3001<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u5143\u306b\u306a\u3063\u3066\u3044\u308b\u30b9\u30ec\u30c3\u30c9\u304c\u9055\u3046\u306e\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u51fa\u529b\u3067\u9055\u3046\u8b58\u5225\u5b50\u30fb\u540d\u524d\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3><span id=\"-Threadsleep\">\uff12-\uff13\uff0e\u4eca\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u4e00\u6642\u505c\u6b62\u3059\u308b<span>Thread.sleep<\/span><\/span><\/h3>\n<p>\u6642\u306b\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u3092\u4e00\u6642\u505c\u6b62\u3057\u305f\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4f55\u3089\u304b\u306e\u51e6\u7406\u5f85\u3061\u3092\u3057\u305f\u3044\u5834\u5408\u306a\u3069\u3067\u3059\u3002\u305d\u3046\u3044\u3046\u6642\u306b\u306f<span>Thread.sleep<\/span>\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>Thread.sleep\u3092\u547c\u3073\u51fa\u3059\u3068\u3001\u4eca\u5b9f\u884c\u4e2d\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u5f15\u6570\u3067\u6307\u5b9a\u3057\u305f\u79d2\u6570\u505c\u6b62\u3067\u304d\u307e\u3059\u3002\u79d2\u6570\u306e\u5358\u4f4d\u306f\u30df\u30ea\u79d2\u3067\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9<span>(Thread.sleep(long millis, int nanos))<\/span>\u3067\u306f\u3001\u30ca\u30ce\u79d2\u3067\u306e\u6307\u5b9a\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        System.out.println(\"sleep\u3092\u59cb\u3081\u307e\u3059\");\r\n\r\n        try {\r\n            Thread.sleep(10000L); \/\/ 10\u79d2(10000ms)\u9593\u3001\u4eca\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u505c\u6b62\u3055\u305b\u308b\r\n        } catch (InterruptedException e) {\r\n        }\r\n\r\n        System.out.println(\"sleep\u304c\u7d42\u308f\u308a\u307e\u3057\u305f\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        Thread t = new ThreadSample();\r\n        t.start();\r\n    }\r\n}<\/pre>\n<p>\u505c\u6b62\u3059\u308b\u306e\u306f<span>Thread.sleep<\/span>\u3092\u547c\u3073\u51fa\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u3060\u3051\u3067\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u30b9\u30ec\u30c3\u30c9\u306f\u5b9f\u884c\u3055\u308c\u7d9a\u3051\u307e\u3059\u3002\u305d\u308c\u306b\u3001\u4efb\u610f\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u3092\u3001\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u76f4\u63a5\u505c\u6b62\u3055\u305b\u3089\u308c\u3082\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u308c\u306f\u7d50\u69cb\u5206\u304b\u308a\u3065\u3089\u3044\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u3082\u3057<span>sleep<\/span>\u306e\u52d5\u304d\u304c\u610f\u56f3\u3069\u304a\u308a\u306b\u306a\u3089\u306a\u3044\u306a\u3089\u3001\u3069\u306e\u30b9\u30ec\u30c3\u30c9\u3067<span>sleep<\/span>\u3057\u3066\u3044\u308b\u304b\u3092\u3001<span>getId<\/span>\u3084<span>getName<\/span>\u3067\u8abf\u3079\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u306a\u304a\u3001\u505c\u6b62\u3057\u3066\u3044\u308b\u30b9\u30ec\u30c3\u30c9\u3078\u3001\u5f8c\u8ff0\u3059\u308b\u5272\u308a\u8fbc\u307f\u304c\u8d77\u304d\u305f\u5834\u5408\u306f\u3001\u9014\u4e2d\u3067\u505c\u6b62\u72b6\u614b\u304c\u89e3\u9664\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u5f97\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306f\u3001<span>catch<\/span>\u3057\u3066\u3044\u308b\u4f8b\u5916<span>InterruptedException<\/span>\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p>Thread.sleep\u306b\u3064\u3044\u3066\u306f\u500b\u5225\u8a18\u4e8b\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u53c2\u8003\u306b\u3057\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n<span style=\"text-decoration:none !important; background-color:#a61e58; color:white; padding:4px 13px; font-size:12px; font-weight:bold; position:relative; top:10px; z-index:1; left:11px;\">\u95a2\u9023\u8a18\u4e8b<\/span>\n<div class=\"blog-card\"><a target=\"_blank\" href=\"https:\/\/www.bold.ne.jp\/engineer-club\/java-sleep\" style=\"text-decoration:none;\">\n    <div class=\"blog-card-thumbnail\"><img src='https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2018\/10\/shutterstock_568617811-600x366.jpg' alt='Java\u306esleep\u3068\u306f\uff1f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4e00\u6642\u505c\u6b62\u3059\u308bThread.sleep\u306e\u4f7f\u3044\u65b9' width=160 height=98 \/><\/div>\n    <div class=\"blog-card-content\">\n        <div class=\"blog-card-title\">Java\u306esleep\u3068\u306f\uff1f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4e00\u6642\u505c\u6b62\u3059\u308bThread.sleep\u306e\u4f7f\u3044\u65b9 <\/div>\n        <span style=\"font-size: 12px; font-weight: normal; position:relative; color:#666;\"><i class=\"fa fa-clock-o\"><\/i>&nbsp;2025\/10\/06<\/span>\n    <\/div>\n<div class=\"clear\"><\/div>\n<\/a><\/div>\n<h3><span id=\"-Threadjoin\">\uff12-\uff14\uff0e\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u304c\u7d42\u308f\u308b\u306e\u3092\u5f85\u3064<span>Thread.join<\/span><\/span><\/h3>\n<p>\u7279\u5b9a\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u304c\u7d42\u308f\u308b\u306e\u3092\u5f85\u3064\u306b\u306f\u3001\u305d\u306e\u30b9\u30ec\u30c3\u30c9\u306e<span>Thread.join<\/span>\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>Thread.sleep\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u81ea\u5206\u81ea\u8eab\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u306f\u505c\u6b62\u3057\u307e\u3059\u3002\u305d\u308c\u304c\u518d\u3073\u52d5\u304d\u51fa\u3059\u304d\u3063\u304b\u3051\u306f\u3001<span>Thread.join<\/span>\u304c\u547c\u3073\u51fa\u3055\u308c\u305f\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u306e\u7d42\u4e86\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        System.out.println(\"sleep\u3092\u59cb\u3081\u307e\u3059\");\r\n\r\n        try {\r\n            Thread.sleep(10000L); \/\/ 10\u79d2\u505c\u6b62\u3059\u308b\r\n        } catch (InterruptedException e) {\r\n        }\r\n\r\n        System.out.println(\"sleep\u304c\u7d42\u308f\u308a\u307e\u3057\u305f\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        Thread t = new ThreadSample();\r\n        t.start();\r\n\r\n        System.out.println(\"join\u3092\u59cb\u3081\u307e\u3059\");\r\n\r\n        try {\r\n            t.join(); \/\/ \u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u304c\u7d42\u308f\u308b\u307e\u3067\u3001\u3053\u3053\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\r\n        } catch (InterruptedException e) {\r\n        }\r\n\r\n        System.out.println(\"join\u304c\u7d42\u308f\u308a\u307e\u3057\u305f\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">join\u3092\u59cb\u3081\u307e\u3059\r\nsleep\u3092\u59cb\u3081\u307e\u3059\r\nsleep\u304c\u7d42\u308f\u308a\u307e\u3057\u305f\r\njoin\u304c\u7d42\u308f\u308a\u307e\u3057\u305f \u2190 10\u79d2\u5f8c\u306b\u3053\u308c\u304c\u8868\u793a\u3055\u308c\u308b<\/pre>\n<p><a href=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092join\u3067\u5f85\u3064.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092join\u3067\u5f85\u3064.png\" alt=\"\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092join\u3067\u5f85\u3064\" width=\"1078\" height=\"809\" class=\"alignnone size-full wp-image-2468\" srcset=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092join\u3067\u5f85\u3064.png 1078w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092join\u3067\u5f85\u3064-768x576.png 768w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092join\u3067\u5f85\u3064-1024x768.png 1024w\" sizes=\"(max-width: 1078px) 100vw, 1078px\" \/><\/a><\/p>\n<h3><span id=\"-Threadinterrupt\">\uff12-\uff15\uff0e\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u3080Thread.interrupt<\/span><\/h3>\n<p>\u51e6\u7406\u4e2d\u306e\u30b9\u30ec\u30c3\u30c9\u3078\u3001\u51e6\u7406\u306e\u4e2d\u65ad\u3092\u4f1d\u3048\u305f\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u969b\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u5272\u308a\u8fbc\u307f\u3068\u3044\u3046\u6a5f\u80fd\u3092\u4f7f\u3046\u3068\u3001\u3059\u3050\u306b\u4f1d\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<h4>\uff12-\uff15-\uff11\uff0eThread.interrupt\u3067\u5272\u308a\u8fbc\u3080<\/h4>\n<p>\u30b9\u30ec\u30c3\u30c9\u3078\u306e\u5272\u308a\u8fbc\u307f\u306f\u3001\u5bfe\u8c61\u306e\u30b9\u30ec\u30c3\u30c9\u306eThread.interrupt\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u3067\u884c\u3048\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u304cThread.sleep\u306a\u3069\u3067\u5f85\u3061\u306e\u72b6\u614b\u306b\u3042\u308b\u5834\u5408\u306a\u3069\u3067\u306f\u3001\u5272\u308a\u8fbc\u307f\u3055\u308c\u305f\u30b9\u30ec\u30c3\u30c9\u3067InterruptedException\u304c\u76f4\u3061\u306b\u767a\u751f\u3057\u307e\u3059\u306e\u3067\u3001\u5272\u308a\u8fbc\u307f\u3092\u3055\u308c\u305f\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p><strong><\/strong><span class=\"f-marker-w\"><strong>ThreadSample.java<\/strong><\/span><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        System.out.println(\"sleep\u3092\u59cb\u3081\u307e\u3059\");\r\n\r\n        try {\r\n            Thread.sleep(10000L); \/\/ 10\u79d2\u505c\u6b62\u3059\u308b\r\n            System.out.println(\"sleep\u304c\u7d42\u308f\u308a\u307e\u3057\u305f\");\r\n        } catch (InterruptedException e) {\r\n            System.out.println(\"\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5272\u308a\u8fbc\u307e\u308c\u307e\u3057\u305f\");\r\n        }\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        Thread t = new ThreadSample();\r\n        t.start();\r\n\r\n        try {\r\n            Thread.sleep(1000L); \/\/ 1\u79d2\u5f85\u6a5f\r\n        } catch (InterruptedException e) {\r\n        }\r\n\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3059\");\r\n        t.interrupt();\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3057\u305f\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">sleep\u3092\u59cb\u3081\u307e\u3059\r\n\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3059 \u21901\u79d2\u5f8c\u306b\u8868\u793a\u3055\u308c\u308b\r\n\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3057\u305f\r\n\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5272\u308a\u8fbc\u307e\u308c\u307e\u3057\u305f \u219010\u79d2\u5f85\u305f\u305a\u306b\u8868\u793a\u3055\u308c\u308b<\/pre>\n<p><a href=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u3078interrupt\u3067\u5272\u308a\u8fbc\u3080.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u3078interrupt\u3067\u5272\u308a\u8fbc\u3080.png\" alt=\"\u30b9\u30ec\u30c3\u30c9\u3078interrupt\u3067\u5272\u308a\u8fbc\u3080\" width=\"1078\" height=\"809\" class=\"alignnone size-full wp-image-2469\" srcset=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u3078interrupt\u3067\u5272\u308a\u8fbc\u3080.png 1078w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u3078interrupt\u3067\u5272\u308a\u8fbc\u3080-768x576.png 768w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u3078interrupt\u3067\u5272\u308a\u8fbc\u3080-1024x768.png 1024w\" sizes=\"(max-width: 1078px) 100vw, 1078px\" \/><\/a><\/p>\n<p>\u306a\u304a\u3001\u5272\u308a\u8fbc\u307f\u3092<span>InterruptedException<\/span>\u3067\u691c\u77e5\u3067\u304d\u308b\u30b1\u30fc\u30b9\u306f\u9650\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f<span>Object.wait<\/span>\u3001<span>Thread.join<\/span>\u3001<span>Thread.sleep<\/span>\u3067\u30b9\u30ec\u30c3\u30c9\u304c\u5f85\u3061\u306e\u72b6\u614b\u306b\u3042\u308b\u5834\u5408\u3067\u3059\u3002<\/p>\n<h4>\uff12-\uff15-\uff12\uff0eThread.interrupted\/isInterrupted\u3067\u5272\u308a\u8fbc\u307f\u3092\u691c\u51fa\u3059\u308b<\/h4>\n<p>\u30b9\u30ec\u30c3\u30c9\u304c\u524d\u8ff0\u3057\u305f\u72b6\u614b<span>(sleep<\/span>\u7b49<span>)<\/span>\u3067\u306f\u306a\u3044\u6642\u306b\u5272\u308a\u8fbc\u307f\u3055\u308c\u305f\u304b\u3092\u77e5\u308b\u306b\u306f\u3001<span>Thread.interrupted<\/span>\u3084<span>Thread.isInterrupted<\/span>\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u5272\u308a\u8fbc\u307f\u3055\u308c\u305f\u304b\u8abf\u3079\u308b\u306b\u306f\u3001<span>Thread.interrupted<\/span>\u3092\u4f7f\u3044\u307e\u3059\u3002\u7279\u5b9a\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u5272\u308a\u8fbc\u307f\u3055\u308c\u305f\u304b\u8abf\u3079\u308b\u306b\u306f\u3001\u305d\u306e\u30b9\u30ec\u30c3\u30c9\u306e<span>Thread.isInterrupted<\/span>\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001\u5272\u308a\u8fbc\u307f\u3055\u308c\u305f\u76f4\u5f8c\u306e\u547c\u3073\u51fa\u3057\u3067\u306f<span>true<\/span>\u3092\u623b\u3057\u3001\u4ee5\u5f8c\u306f\u518d\u3073\u5272\u308a\u8fbc\u307f\u3055\u308c\u306a\u3051\u308c\u3070<span>false<\/span>\u3092\u623b\u3057\u307e\u3059\u3002\u3067\u3059\u304b\u3089\u3001\u5272\u308a\u8fbc\u307f\u304c\u3042\u3063\u305f\u304b\u5206\u304b\u308b\u306e\u306f\u6700\u521d\u306e\u4e00\u56de\u3060\u3051\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">InterruptedThreadSample1.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class InterruptedThreadSample1 extends Thread {\r\n    public void run() {\r\n        System.out.println(\"\u30eb\u30fc\u30d7\u3092\u59cb\u3081\u307e\u30591\");\r\n\r\n        \/\/ \u6642\u9593\u7a3c\u304e\u306e\u305f\u3081\u306e\u7a7a\u30eb\u30fc\u30d7\r\n        for (long i = 0; i &lt; 10000000000L; i++) {\r\n        }\r\n\r\n        System.out.println(\"\u30eb\u30fc\u30d7\u304c\u7d42\u308f\u308a\u307e\u3057\u305f1\");\r\n\r\n        if (isInterrupted()) {\r\n            System.out.println(\"\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5272\u308a\u8fbc\u307e\u308c\u3066\u3044\u307e\u30591\");\r\n        }\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">InterruptedThreadSample2.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class InterruptedThreadSample2 extends Thread {\r\n    public void run() {\r\n        System.out.println(\"\u30eb\u30fc\u30d7\u3092\u59cb\u3081\u307e\u30592\");\r\n\r\n        \/\/ \u6642\u9593\u7a3c\u304e\u306e\u305f\u3081\u306e\u7a7a\u30eb\u30fc\u30d7\r\n        for (long i = 0; i &lt; 10000000000L; i++) {\r\n        }\r\n\r\n        System.out.println(\"\u30eb\u30fc\u30d7\u304c\u7d42\u308f\u308a\u307e\u3057\u305f2\");\r\n\r\n        if (Thread.interrupted()) {\r\n            System.out.println(\"\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5272\u308a\u8fbc\u307e\u308c\u3066\u3044\u307e\u30592\");\r\n        }\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        Thread t1 = new InterruptedThreadSample1();\r\n        Thread t2 = new InterruptedThreadSample2();\r\n        t1.start();\r\n        t2.start();\r\n\r\n        try {\r\n            Thread.sleep(1000L);\r\n        } catch (InterruptedException e) {\r\n        }\r\n\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3059\");\r\n        t1.interrupt();\r\n        t2.interrupt();\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3057\u305f\");\r\n    }\r\n}<\/pre>\n<p>\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3001\u30eb\u30fc\u30d7\u3092\u3057\u3066\u3044\u308b\u6700\u4e2d\u306b\u5272\u308a\u8fbc\u3093\u3067\u3082\u51e6\u7406\u306f\u4e2d\u65ad\u3055\u308c\u307e\u305b\u3093\u3002\u30eb\u30fc\u30d7\u5f8c\u306b<span>Thread.isInterrupted<\/span>\u307e\u305f\u306f<span>Thread.interrupted<\/span>\u3092\u547c\u3073\u51fa\u3059\u3068\u3001\u5272\u308a\u8fbc\u307f\u304c\u3042\u3063\u305f\u304b\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30eb\u30fc\u30d7\u3092\u59cb\u3081\u307e\u30591\r\n\u30eb\u30fc\u30d7\u3092\u59cb\u3081\u307e\u30592\r\n\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3059 \u21901\u79d2\u5f8c\u306b\u8868\u793a\u3055\u308c\u308b\r\n\u30b9\u30ec\u30c3\u30c9\u306b\u5272\u308a\u8fbc\u307f\u307e\u3057\u305f\r\n\u30eb\u30fc\u30d7\u304c\u7d42\u308f\u308a\u307e\u3057\u305f2 \u2190\u5404\u30b9\u30ec\u30c3\u30c9\u306e\u30eb\u30fc\u30d7\u7d42\u4e86\u5f8c\u306b\u4ee5\u4e0b\u304c\u8868\u793a\u3055\u308c\u308b\r\n\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5272\u308a\u8fbc\u307e\u308c\u3066\u3044\u307e\u30592\r\n\u30eb\u30fc\u30d7\u304c\u7d42\u308f\u308a\u307e\u3057\u305f1\r\n\u5225\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5272\u308a\u8fbc\u307e\u308c\u3066\u3044\u307e\u30591<\/pre>\n<h3><span id=\"-ThreadUncaughtExceptionHandler\">\uff12-\uff16\uff0e\u4f8b\u5916\u3092\u51e6\u7406\u3059\u308b<span>Thread.UncaughtExceptionHandler<\/span><\/span><\/h3>\n<p>Thread.UncaughtExceptionHandler\u306f\u3001<span>Thread.run<\/span>\u3084<span>Runnable.run<\/span>\u3067\u767a\u751f\u3057\u305f\u4f8b\u5916\u3092\u88dc\u8db3\u3059\u308b\u305f\u3081\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<h4>\uff12-\uff16-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u5185\u3067\u767a\u751f\u3057\u305f\u4f8b\u5916\u306e\u6271\u3044<\/h4>\n<p>\u30e1\u30bd\u30c3\u30c9\u5ba3\u8a00\u304b\u3089\u660e\u3089\u304b\u306a\u3088\u3046\u306b\u3001<span>Thread.run<\/span>\u3084<span>Runnable.run<\/span>\u306f\u3001\u30c1\u30a7\u30c3\u30af\u4f8b\u5916\u3092<span>throw<\/span>\u3067\u304d\u307e\u305b\u3093\u3002\u3067\u3059\u306e\u3067\u3001\u51e6\u7406\u4e2d\u3067\u767a\u751f\u3057\u305f\u30c1\u30a7\u30c3\u30af\u4f8b\u5916\u306f\u3001<span>run<\/span>\u306e\u4e2d\u3067<span>try-catch<\/span>\u6587\u3067\u3059\u3079\u3066\u51e6\u7406\u3059\u308b\u304b\u3001<span>throw<\/span>\u53e5\u3078\u306e\u8a18\u8f09\u304c\u4e0d\u8981\u306a<span>RuntimeException<\/span>\u3068\u3057\u3066<span>throw<\/span>\u3057\u307e\u3059\u3002<\/p>\n<p>RuntimeException\u3092<span>throw<\/span>\u3057\u305f\u5834\u5408\u306f\u3001\u4f8b\u5916\u304c<span>throw<\/span>\u3055\u308c\u308b\u3068\u305d\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u5168\u4f53\u304c\u6b62\u307e\u308a\u307e\u3059\u3002\u305d\u306e\u4e0a\u3067\u3001\u4f55\u304c\u8d77\u304d\u305f\u306e\u304b\u3082\u30b9\u30ec\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u5143\u304b\u3089\u306f\u7c21\u5358\u306b\u306f\u5206\u304b\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        if (true) {\r\n            throw new RuntimeException(\"\u30b9\u30ec\u30c3\u30c9\" + getName() + \"\u304b\u3089RuntimeException\u3092throw\u3057\u307e\u3059\");\r\n        }\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u3092\u59cb\u3081\u307e\u3059\");\r\n\r\n        try {\r\n            Thread t = new ThreadSample();\r\n            t.start();\r\n        } catch (Exception e) {\r\n            System.out.println(\"\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3057\u305f\");\r\n            e.printStackTrace();\r\n        }\r\n\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u3092\u884c\u3044\u307e\u3057\u305f\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u3092\u59cb\u3081\u307e\u3059\r\n\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u3092\u884c\u3044\u307e\u3057\u305f\r\nException in thread \"Thread-0\" java.lang.RuntimeException: \u30b9\u30ec\u30c3\u30c9Thread-0\u304b\u3089RuntimeException\u3092throw\u3057\u307e\u3059\r\n\tat ThreadSample.run(ThreadSample.java:6)<\/pre>\n<p>\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u304b\u3057\u305f\u6642\u306f\u3001<span>run<\/span>\u30e1\u30bd\u30c3\u30c9\u304b\u3089\u4f8b\u5916\u304c<span>throw<\/span>\u3055\u308c\u3066\u3082\u3001<span>main<\/span>\u30e1\u30bd\u30c3\u30c9\u306b\u3042\u308b<span>catch<\/span>\u53e5\u306b\u306f\u5165\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u3067\u767a\u751f\u3057\u305f\u4f8b\u5916\u306f<span>Java<\/span>\u4eee\u60f3\u30de\u30b7\u30f3\u304c\u53d7\u3051\u53d6\u3063\u3066\u51e6\u7406\u3057\u307e\u3059\u304c\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u30b9\u30ec\u30c3\u30c9\u3067\u767a\u751f\u3057\u305f\u4f8b\u5916\u3092\u77e5\u308a\u3001\u4f55\u304b\u306e\u51e6\u7406\u3092\u3055\u305b\u308b\u306b\u306f\u3072\u3068\u5de5\u592b\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h4>\uff12-\uff16-\uff12\uff0eThread.UncaughtExceptionHandler\u3067\u4f8b\u5916\u306e\u767a\u751f\u3092\u77e5\u308b<\/h4>\n<p>Thread.UncaughtExceptionHandler\u3092\u4f7f\u3046\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u767a\u751f\u3057\u305f\u4f8b\u5916\u3078\u306e\u30d5\u30a9\u30ed\u30fc\u51e6\u7406\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u5916\u767a\u751f\u6642\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u3092\u518d\u958b\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u5fc5\u8981\u306a\u5f8c\u51e6\u7406<span>(<\/span>\u30ed\u30b0\u51fa\u529b\u306a\u3069<span>)<\/span>\u3092\u884c\u3046\u6a5f\u4f1a\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    public void run() {\r\n        if (true) {\r\n            throw new RuntimeException(\"\u30b9\u30ec\u30c3\u30c9\" + getName() + \"\u304b\u3089RuntimeException\u3092throw\u3057\u307e\u3059\");\r\n        }\r\n    }\r\n}<\/pre>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3001<span>Thread.UncaughtExceptionHandler<\/span>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3001<span>Thread.setUncaughtExceptionHandler<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3068\u3057\u3066\u3001<span>Thread<\/span>\u306b\u5f15\u304d\u6e21\u3057\u307e\u3059\u3002<\/p>\n<p>Thread.UncaughtExceptionHandler\u306e<span>uncaughtException<\/span>\u30e1\u30bd\u30c3\u30c9\u304c\u3001\u4f8b\u5916\u767a\u751f\u6642\u306b\u547c\u3073\u51fa\u3055\u308c\u307e\u3059\u3002<span>uncaughtException<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3078\u306f\u3001\u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u3068\u4f8b\u5916\u304c\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        Thread.UncaughtExceptionHandler handler = new Thread.UncaughtExceptionHandler() {\r\n            public void uncaughtException(Thread thread, Throwable throwable) {\r\n                System.out.println(\"\u30b9\u30ec\u30c3\u30c9\" + thread.getName() + \"\u3067\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3057\u305f\");\r\n                throwable.printStackTrace();\r\n            }\r\n        };\r\n        Thread t = new ThreadSample();\r\n        t.setUncaughtExceptionHandler(handler);\r\n        t.start();\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u3092\u59cb\u3081\u307e\u3059\r\n\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u884c\u3092\u884c\u3044\u307e\u3057\u305f\r\n\u30b9\u30ec\u30c3\u30c9Thread-0\u3067\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3057\u305f\r\njava.lang.RuntimeException: \u30b9\u30ec\u30c3\u30c9Thread-0\u304b\u3089RuntimeException\u3092throw\u3057\u307e\u3059\r\n\tat jp.engineer_club.thread.ThreadSample.run(ThreadSample.java:6)<\/pre>\n<h2><span id=\"Java-2\">\uff13\uff0e\u3010Java\u3011\u30b9\u30ec\u30c3\u30c9\u95a2\u9023\u306e\u30c8\u30d4\u30c3\u30af<\/span><\/h2>\n<p>\u3053\u306e\u7ae0\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u306b\u95a2\u9023\u3059\u308b\u30c8\u30d4\u30c3\u30af\u3092\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/p>\n<h3><span id=\"i-2\">\uff13-\uff11\uff0e\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306e\u53d7\u3051\u53d6\u308a<\/span><\/h3>\n<p>\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u3092\u30b9\u30ec\u30c3\u30c9\u306e\u5916\u90e8\u304b\u3089\u53d7\u3051\u53d6\u308a\u305f\u3044\u6642\u304c\u3042\u308a\u307e\u3059\u3002\u3067\u3059\u304c\u3001<span>Thread.run<\/span>\u3068<span>Runnable.run<\/span>\u306e\u3069\u3061\u3089\u3082\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306f<span>void<\/span>\u306a\u306e\u3067\u3001\u7d50\u679c\u3092\u547c\u3073\u51fa\u3057\u5143\u3078\u76f4\u63a5\u306f\u623b\u305b\u307e\u305b\u3093\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306e\u53d7\u3051\u53d6\u308a\u65b9\u306b\u306f\u3001\u5927\u307e\u304b\u306b\u306f\u4e09\u7a2e\u985e\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u3084\u308a\u65b9\u3092\u30b5\u30f3\u30d7\u30eb\u3092\u4ea4\u3048\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30fb\u30dd\u30fc\u30ea\u30f3\u30b0\uff1a<span>Thread\/Runnable<\/span>\u306b\u51e6\u7406\u304c\u7d42\u308f\u3063\u305f\u304b\u554f\u3044\u5408\u308f\u305b\u3001\u7d42\u308f\u3063\u305f\u3089\u7d50\u679c\u3092\u5f97\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076<\/li>\n<li>\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\uff1a<span>Thread\/Runnable<\/span>\u306b\u51e6\u7406\u304c\u7d42\u308f\u3063\u305f\u5f8c\u306b\u547c\u3073\u51fa\u3059\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6e21\u3057\u3001\u7d42\u308f\u3063\u305f\u3089\u6240\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3093\u3067\u3082\u3089\u3046<\/li>\n<li>\u30c7\u30fc\u30bf\u5171\u6709\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff1a\u51e6\u7406\u7d50\u679c\u3092\u53d7\u3051\u53d6\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u3001\u547c\u3073\u51fa\u3057\u5143\u3068\u5148\u3068\u3067\u5171\u6709\u3059\u308b<\/li>\n<\/ul>\n<h4>\uff13-\uff11-\uff11\uff0e\u30dd\u30fc\u30ea\u30f3\u30b0\u306e\u4f8b<\/h4>\n<p>\u30dd\u30fc\u30ea\u30f3\u30b0<span>(polling)<\/span>\u3068\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u306f\u5b9a\u671f\u7684\u306b\u554f\u3044\u5408\u308f\u305b\u3092\u3059\u308b\u51e6\u7406\u65b9\u6cd5\u306e\u3053\u3068\u3067\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u304b\u3064\u76f4\u611f\u7684\u306a\u51e6\u7406\u65b9\u5f0f\u3067\u3059\u3002<\/p>\n<p>\u30dd\u30fc\u30ea\u30f3\u30b0\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u304c\u7d42\u308f\u3063\u305f\u304b\u3092\u3001\u30b9\u30ec\u30c3\u30c9\u81ea\u8eab\u3078\u5b9a\u671f\u7684\u306b\u554f\u3044\u5408\u308f\u305b\u307e\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u304c\u7d42\u308f\u3063\u305f\u3068\u56de\u7b54\u3057\u305f\u306a\u3089\u3001\u305d\u3053\u3067\u7d50\u679c\u3092\u53d7\u3051\u53d6\u308b\u306e\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    private int result;\r\n    private boolean finished;\r\n\r\n    public void run() {\r\n        for (int i = 1; i &lt;= 10; i++) {\r\n            result += i;\r\n        }\r\n\r\n        finished = true;\r\n    }\r\n\r\n    int getResult() {\r\n        return retult;\r\n    }\r\n\r\n    boolean finished() {\r\n        return finished;\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        ThreadSample t = new TheadSample();\r\n        t.start();\r\n\r\n        \/\/ \u51e6\u7406\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u5f85\u3064\u70ba\u306e\u30eb\u30fc\u30d7\r\n        while (true) {\r\n            try {\r\n                Thread.sleep(1000L);\r\n            } catch (InterruptedException e) {\r\n            }\r\n\r\n            \/\/ \u51e6\u7406\u304c\u5b8c\u4e86\u3057\u3066\u3044\u305f\u3089\u30eb\u30fc\u30d7\u3092\u629c\u3051\u308b\r\n            if (t.finished()) {\r\n                break;\r\n            }\r\n        }\r\n\r\n        int result = t.getResult();\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f\" + result + \u201d\u3067\u3059\u201d);\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f55\u3067\u3059<\/pre>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7c21\u5358\u306b\u3059\u308b\u305f\u3081\u306b\u3001<span>Thread.sleep<\/span>\u3057\u306a\u304c\u3089\u30eb\u30fc\u30d7\u3057\u3066\u3044\u307e\u3059\u3002\u5b9f\u969b\u306b\u306f\u3001\u3053\u306e<span>sleep<\/span>\u306e\u7b87\u6240\u3067\u5225\u306e\u51e6\u7406\u3092\u3057\u307e\u3059\u3002\u3059\u308b\u3068\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u51e6\u7406\u6642\u9593\u3092\u52b9\u7387\u7684\u306b\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<p>\u6b20\u70b9\u306f\u3001\u547c\u3073\u51fa\u3057\u5143\u304c\u5b9a\u671f\u7684\u306b\u72b6\u614b\u3092\u805e\u304b\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u3064\u307e\u308a\u300c\u3042\u3068\u306f\u3088\u308d\u3057\u304f\uff5e\u300d\u3068\u3001\u4ed5\u4e8b\u3092\u4e38\u6295\u3052\u3067\u304d\u305a\u3001\u7d42\u308f\u308a\u307e\u3067\u9762\u5012\u3092\u898b\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<h4>\uff13-\uff11-\uff12\uff0e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u4f8b<\/h4>\n<p>\u30b3\u30fc\u30eb\u30d0\u30c3\u30af<span>(callback)<\/span>\u3068\u306f\u3001\u4e00\u822c\u7684\u306b\u306f\u300c<span>(<\/span>\u96fb\u8a71\u3092<span>)<\/span>\u304b\u3051\u76f4\u3059\u30fb\u304b\u3051\u8fd4\u3059\u3001\u547c\u3073\u76f4\u3059\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u306f\u3001\u547c\u3073\u51fa\u3057\u5143\u304c\u51e6\u7406\u3092\u4e8b\u524d\u306b\u6307\u5b9a\u3057\u3066\u3001\u7d42\u308f\u3063\u305f\u6642\u306b\u547c\u3073\u51fa\u3057\u5148\u304b\u3089\u547c\u3073\u8fd4\u3057\u3066\u3082\u3089\u3046\u3084\u308a\u65b9\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u3092\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u4f7f\u3063\u3066\u53d7\u3051\u53d6\u308b\u4f8b\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    private Callback callback;\r\n\r\n    public void run() {\r\n        int result = 0;\r\n\r\n        for (int i = 1; i &lt;= 10; i++) {\r\n            result += i;\r\n        }\r\n\r\n        callback.finished(result);\r\n    }\r\n\r\n    void setCallback(Callback callback) {\r\n        this.callback = callback;\r\n    }\r\n\r\n    static interface Callback {\r\n        void finished(int result);\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        ThreadSample.Callback callback = new ThreadSample.Callback() {\r\n            public void finished(int result) {\r\n                System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f\" + result + \"\u3067\u3059\");\r\n            }\r\n        };\r\n        ThreadSample t = new ThreadSample();\r\n        t.setCallback(callback);\r\n        t.start();\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f55\u3067\u3059<\/pre>\n<p>Callback\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9<span>(<\/span>\u4eca\u56de\u306f\u533f\u540d\u30af\u30e9\u30b9\u3067\u3059<span>)<\/span>\u304c\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u304c\u7d42\u308f\u3063\u305f\u5f8c\u306b\u547c\u3070\u308c\u308b\u51e6\u7406\u3067\u3059\u3002\u51e6\u7406\u7d50\u679c\u306f\u3001<span>finished<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3067\u6e21\u3055\u308c\u307e\u3059\u306e\u3067\u3001\u305d\u308c\u3092\u4f7f\u3063\u3066\u4f55\u304b\u3092\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u3092\u4f5c\u308b\u5074\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001\u30dd\u30fc\u30ea\u30f3\u30b0\u306e\u4f8b\u3068\u6bd4\u3079\u308b\u3068\u305a\u3044\u3076\u3093\u3059\u3063\u304d\u308a\u3057\u307e\u3057\u305f\u306d\u3002\u3053\u308c\u306f\u3001\u30dd\u30fc\u30ea\u30f3\u30b0\u3067\u5fc5\u8981\u3060\u3063\u305f\u300c\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u5f85\u3061\u3092\u3059\u308b\u51e6\u7406\u300d\u304c\u306a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u8981\u6ce8\u76ee\u306f\u3001\u7d42\u308f\u3063\u305f\u5f8c\u306e\u51e6\u7406\u304c<span>Callback<\/span>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3067\u62bd\u8c61\u5316\u3055\u308c\u305f\u3053\u3068\u3067\u3059\u3002<span>ThreadSample<\/span>\u306f\u3001\u51e6\u7406\u306e\u5b9f\u88c5\u304c\u4f55\u3067\u3042\u308c<span>finished<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u3060\u3051\u306a\u306e\u3067\u3001\u6c4e\u7528\u6027\u304c\u5897\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h4>\uff13-\uff11-\uff13\uff0e\u30c7\u30fc\u30bf\u5171\u6709\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f8b<\/h4>\n<p>\u547c\u3073\u51fa\u3057\u5143\u3068\u547c\u3073\u51fa\u3057\u5148\u3068\u3067\u3001\u4f55\u304b\u3057\u3089\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5171\u6709\u3059\u308b\u3084\u308a\u65b9\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u51e6\u7406\u7d50\u679c\u3084\u3001\u51e6\u7406\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d7\u3051\u6e21\u3057\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u52d5\u304f\u3082\u306e\u3067\u3059\u304c\u3001\u4e00\u3064\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4e2d\u3067\u306a\u3089\u3001\u30e1\u30e2\u30ea\u3092\u7d4c\u7531\u3059\u308c\u3070\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u30c7\u30fc\u30bf\u3092\u5171\u6709\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u8d8a\u3048\u3066\u30c7\u30fc\u30bf\u306e\u3084\u308a\u3068\u308a\u3092\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5916\u306b\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306a\u3069\u3092\u4f7f\u308f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4ee5\u4e0b\u306f\u3001\u30c7\u30fc\u30bf\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3063\u3066\u307f\u305f\u4f8b\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">SharedData.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class SharedData {\r\n    private Integer result;\r\n\r\n    Integer getResult() {\r\n        return result;\r\n    }\r\n\r\n    void setResult(int result) {\r\n        this.result = result;\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadSample extends Thread {\r\n    private SharedData sharedData;\r\n\r\n    public void run() {\r\n        int result = 0;\r\n\r\n        for (int i = 1; i &lt;= 10; i++) {\r\n            result += i;\r\n        }\r\n\r\n        sharedData.setResult(result);\r\n    }\r\n\r\n    void setSharedData(SharedData sharedData) {\r\n        this.sharedData = sharedData;\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        SharedData sharedData = new SharedData();\r\n        ThreadSample t = new ThreadSample();\r\n        t.setSharedData(sharedData);\r\n        t.start();\r\n\r\n        while (true) {\r\n            try {\r\n                Thread.sleep(1000L);\r\n            } catch (InterruptedException e) {\r\n            }\r\n\r\n            if (sharedData.getResult() != null) {\r\n                break;\r\n            }\r\n        }\r\n\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f\" + sharedData.getResult() + \"\u3067\u3059\");\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f55\u3067\u3059<\/pre>\n<p>\u30c7\u30fc\u30bf\u3092\u6301\u3064<span>SharedData<\/span>\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u3001\u547c\u3073\u51fa\u3057\u5143\u3068\u5148\u3067\u5171\u6709\u3057\u3066\u3044\u307e\u3059\u306d\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u69cb\u9020\u304c\u3001\u30dd\u30fc\u30ea\u30f3\u30b0\u3068\u4f3c\u3066\u3044\u308b\u306e\u306f\u305f\u307e\u305f\u307e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<span>2<\/span>\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u30c7\u30fc\u30bf\u3092\u5171\u6709\u3057\u307e\u3057\u305f\u304c\u3001\u3082\u3061\u308d\u3093\u30b9\u30ec\u30c3\u30c9\u6570\u306f<span>2<\/span>\u3064\u3060\u3051\u306b\u9650\u5b9a\u3055\u308c\u305a\u3001\u5fc5\u8981\u306a\u3060\u3051\u5e83\u3052\u3089\u308c\u307e\u3059\u3002\u305d\u308c\u304c\u3053\u306e\u3084\u308a\u65b9\u306e\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u306e\u30c7\u30fc\u30bf\u5171\u6709\u306f\u5371\u967a\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u8907\u96d1\u306b\u306a\u308a\u307e\u3059\u3057\u3001\u5f8c\u8ff0\u3059\u308b\u540c\u671f\u5316\u30fb\u6392\u4ed6\u30ed\u30c3\u30af\u306e\u554f\u984c\u304c\u3068\u3066\u3082\u8868\u9762\u5316\u3057\u3084\u3059\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001<span>public<\/span>\u306a\u30af\u30e9\u30b9\u5909\u6570\u3092\u5171\u6709\u30c7\u30fc\u30bf\u3068\u3057\u3066\u4f7f\u3048\u3082\u3057\u307e\u3059\u304c\u3001\u305d\u3046\u3059\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3044\u308f\u3086\u308b\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3068\u540c\u3058\u3053\u3068\u3067\u3059\u304b\u3089\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3067\u5bfe\u51e6\u3057\u3066\u304d\u305f\u69d8\u3005\u306a\u554f\u984c\u304c\u518d\u767a\u3057\u304b\u306d\u307e\u305b\u3093\u3002<\/p>\n<h4>\uff13-\uff11-\uff14\uff0e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u4f7f\u3044\u904e\u304e\u306b\u306f\u8981\u6ce8\u610f<\/h4>\n<p>\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u95a2\u9023\u4ee5\u5916\u3067\u3082\u5b9f\u7528\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u591a\u7528\u3055\u308c\u307e\u3059\u3002\u7279\u306b<span>JavaScript<\/span>\u306a\u3069\u3067\u306e<span>HTML<\/span>\u30a2\u30d7\u30ea\u3084\u3001<span>Android\/iOS<\/span>\u3067\u306e\u30b9\u30de\u30db\u30a2\u30d7\u30ea\u306e\u3088\u3046\u306a<span>GUI<\/span>\u30a2\u30d7\u30ea\u3067\u306f\u3054\u304f\u666e\u901a\u306b\u4f7f\u3044\u307e\u3059\u306e\u3067\u3001\u6163\u308c\u3066\u304a\u304f\u3079\u304d\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u4fbf\u5229\u3060\u304b\u3089\u3068\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u4f7f\u3044\u307e\u304f\u308b\u3068\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u69cb\u9020\u3084\u51e6\u7406\u306e\u547c\u3073\u51fa\u3057\u9806\u5e8f\u304c\u76f4\u611f\u7684\u306b\u5206\u304b\u308a\u3065\u3089\u304f\u306a\u308a\u3001\u5927\u304d\u306a\u554f\u984c\u3068\u306a\u308a\u307e\u3059\u3002\u300c\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u5730\u7344<span>(callback hell)<\/span>\u300d\u3068\u3044\u3046\u8a00\u8449\u304c\u3042\u308b\u304f\u3089\u3044\u306a\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u5730\u7344\u306e\u89e3\u6d88\u306e\u305f\u3081\u306b\u3001<span>Rx(Reactive Extensions)<\/span>\u306a\u3069\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u304c\u6d3b\u7528\u3055\u308c\u305f\u308a\u3001<span>Java<\/span>\u4ee5\u5916\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u6a5f\u80fd\u5f37\u5316\u304c\u7d9a\u3044\u3066\u3044\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u7d20\u76f4\u306b\u30dd\u30fc\u30ea\u30f3\u30b0\u3059\u308b\u65b9\u304c\u7c21\u5358\u304b\u3064\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u8aad\u307f\u3084\u3059\u304f\u306a\u308b\u5834\u5408\u3082\u591a\u3044\u306e\u3067\u3001\u9069\u6750\u9069\u6240\u3067\u3084\u308a\u65b9\u3092\u9078\u3073\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span id=\"-mainmain\">\uff13-\uff12\uff0e\u3010\u53c2\u8003\u3011<span>main<\/span>\u30e1\u30bd\u30c3\u30c9\u306f<span>main<\/span>\u30b9\u30ec\u30c3\u30c9\u304c\u52d5\u304b\u3059<\/span><\/h3>\n<p>Java\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u52d5\u304f\u6642\u306b\u306f\u3001\u5fc5\u305a\u4f55\u304b\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u3042\u308a\u3001\u52d5\u3044\u3066\u3044\u307e\u3059\u3002\u8a00\u3044\u65b9\u3092\u5909\u3048\u308c\u3070\u3001<span>Java<\/span>\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u5fc5\u305a\u4f55\u304b\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u52d5\u304b\u3057\u3066\u3044\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<span>main<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u52d5\u304b\u3057\u3066\u3044\u308b\u30b9\u30ec\u30c3\u30c9\u306e\u540d\u524d\u3092\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        String threadName = Thread.currentThread().getName();\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\" + threadName + \"\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059\");\r\n    }\r\n}<\/pre>\n<p>\u52d5\u304b\u3057\u305f\u7d50\u679c\u306f\u3001\u4ee5\u4e0b\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u3069\u3046\u3084\u3089\u3053\u306e<span>main<\/span>\u30e1\u30bd\u30c3\u30c9\u306f\u3001<span>&#8220;main&#8221;<\/span>\u3068\u3044\u3046\u540d\u524d\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u52d5\u304b\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u306d\u3002<\/p>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">\u30b9\u30ec\u30c3\u30c9main\u3067\u52d5\u3044\u3066\u307e\u30fc\u3059<\/pre>\n<p>\u3067\u3082\u3001\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u4e2d\u3067\u306f<span>Thread<\/span>\u307e\u305f\u306f<span>Thread<\/span>\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u3063\u3066\u3044\u307e\u305b\u3093\u3002\u3067\u3082\u30b9\u30ec\u30c3\u30c9\u306e\u540d\u524d\u306f\u3042\u308b\u306e\u3067\u3001\u8ab0\u304b\u304c<span>main<\/span>\u30b9\u30ec\u30c3\u30c9\u3092\u4f5c\u3063\u3066\u52d5\u304b\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e<span>main<\/span>\u30b9\u30ec\u30c3\u30c9\u3092\u4f5c\u3063\u3066\u52d5\u304b\u3057\u3066\u3044\u308b\u306e\u306f\u3001<span>Java<\/span>\u4eee\u60f3\u30de\u30b7\u30f3\u3067\u3059\u3002<span>Java<\/span>\u304c\u52d5\u304f\u6642\u306b\u306f<span>Java<\/span>\u4eee\u60f3\u30de\u30b7\u30f3\u304c<span>main<\/span>\u30b9\u30ec\u30c3\u30c9\u3092\u81ea\u5206\u81ea\u8eab\u3067\u4f5c\u308a\u3001\u305d\u306e<span>main<\/span>\u30b9\u30ec\u30c3\u30c9\u3067<span>main<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u52d5\u304b\u3057\u307e\u3059\u3002<\/p>\n<p>\u7686\u3055\u3093\u306f\u3001\u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u3092\u898b\u305f\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306f<span>main<\/span>\u30e1\u30bd\u30c3\u30c9\u304c\u306a\u3044\u30af\u30e9\u30b9\u3092\u5b9f\u884c\u3057\u3088\u3046\u3068\u3057\u305f\u6642\u306e\u3082\u306e\u3067\u3059\u3002\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e<span>&#8220;main&#8221;<\/span>\u3053\u305d\u304c\u3001<span>main<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">java.lang.NoSuchMethodError: main Exception in thread \"main\"<\/pre>\n<p>1-2\u3068<span>1-3<\/span>\u3067\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3092<span>3<\/span>\u3064\u4f5c\u3063\u3066\u52d5\u304b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u3088\u308a\u6b63\u78ba\u306b\u8a00\u3048\u3070<span>main<\/span>\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u30b9\u30ec\u30c3\u30c9\u3092<span>3<\/span>\u3064\u4f5c\u3063\u3066\u52d5\u304b\u3057\u305f\u306e\u3067\u3059\u3002\u3067\u3059\u304b\u3089\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u306f\u4e00\u6642\u7684\u306b\u30b9\u30ec\u30c3\u30c9\u304c<span>4<\/span>\u3064\u3042\u3063\u305f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3><span id=\"i-3\">\uff13-\uff13\uff0e\u3010\u767a\u5c55\u3011\u540c\u671f\u5316\u30fb\u6392\u4ed6\u30ed\u30c3\u30af\u306e\u8003\u3048\u65b9<\/span><\/h3>\n<p>\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3046\u4e0a\u3067\u307b\u307c\u30bb\u30c3\u30c8\u306b\u306a\u308b\u306e\u304c\u3001\u540c\u671f\u5316\u3084\u6392\u4ed6\u30ed\u30c3\u30af\u3068\u547c\u3070\u308c\u308b\u8003\u3048\u65b9\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u306b\u3088\u308a\u300c\u51e6\u7406\u304c\u540c\u6642\u306b\u52d5\u304f\u300d\u3053\u3068\u3092\u9632\u3050\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u540c\u671f\u5316\u3084\u6392\u4ed6\u30ed\u30c3\u30af\u3092\u304d\u3061\u3093\u3068\u4f7f\u3044\u3053\u306a\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u5c40\u9762\u304c\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3046\u4e0a\u3067\u306e\u8155\u306e\u898b\u305b\u6240\u3067\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3044\u3053\u306a\u3059\u305f\u3081\u306b\u3082\u3001\u3057\u3063\u304b\u308a\u5b66\u3093\u3067\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4>\uff13-\uff13-\uff11\uff0e1\u3092<span>10000<\/span>\u56de\u8db3\u3057\u3066\u3082<span>10000<\/span>\u306b\u306f\u306a\u3089\u306a\u3044<span>(<\/span>\u3053\u3068\u304c\u3042\u308b<span>)<\/span><\/h4>\n<p>\u4ee5\u4e0b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001<span>10<\/span>\u500b\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u305d\u308c\u305e\u308c<span>1,000<\/span>\u56de\u3001<span>int<\/span>\u578b\u306e\u5909\u6570\u3092<span>+1<\/span>\u3057\u7d9a\u3051\u307e\u3059\u3002<span>10<\/span>\u00d7<span>1,000<\/span>\u306f\u5f53\u7136<span>10,000<\/span>\u3067\u3059\u3088\u306d\u3002<\/p>\n<p>\u3067\u3082\u3001\u3053\u308c\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u306b\u3001\u7d50\u679c\u304c\u5e38\u306b<span>10,000<\/span>\u306b\u306a\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u5358\u306b\u3001<span>int<\/span>\u578b\u306e\u5909\u6570\u3092<span>+1<\/span>\u3057\u7d9a\u3051\u3066\u3044\u308b\u3060\u3051\u306a\u306e\u306b\u3001\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">RunnableSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class RunnableSample implements Runnable {\r\n    private int count;\r\n\r\n    public void run() {\r\n        for (int i = 0; i &lt; 1000; i++) {\r\n            count++;\r\n        }\r\n    }\r\n\r\n    int getCount() {\r\n        return count;\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ThreadExecutor.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class ThreadExecutor {\r\n    public static void main(String[] args) {\r\n        for (int i = 0; i &lt; 100; i++) {\r\n            RunnableTest r = new RunnableTest();\r\n            Thread[] threads = new Thread[10];\r\n    \r\n            for (int j = 0; j &lt; threads.length; j++) {\r\n                threads[j] = new Thread(r);\r\n            }\r\n    \r\n            for (int j = 0; j &lt; threads.length; j++) {\r\n                threads[j].start();\r\n            }\r\n    \r\n            \/\/ \u5168\u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u306e\u7d42\u4e86\u3092\u5f85\u3063\u3066\u2026\r\n            for (int j = 0; j &lt; threads.length; j++) {\r\n                try {\r\n                    threads[j].join();\r\n                } catch (InterruptedException e) {\r\n                }\r\n            }\r\n    \r\n            \/\/ \u51e6\u7406\u7d50\u679c\u3092\u51fa\u529b\u3057\u3066\u307f\u308b\u3068\u2026\r\n            System.out.println((i + 1) + \"\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f\" + r.getCount()) + \"\u3067\u3059\";\r\n        }\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-p\">\u5b9f\u884c\u7d50\u679c<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">1\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f8796\u3067\u3059\r\n2\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f9559\u3067\u3059\r\n3\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f8183\u3067\u3059\r\n4\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f9139\u3067\u3059\r\n5\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f9675\u3067\u3059\r\n6\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f9767\u3067\u3059\r\n7\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f9967\u3067\u3059\r\n8\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f10000\u3067\u3059\r\n9\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f10000\u3067\u3059\r\n10\u56de\u76ee:\u51e6\u7406\u7d50\u679c\u306f10000\u3067\u3059<\/pre>\n<p>\u3055\u3066\u3001\u7686\u3055\u3093\u306e\u74b0\u5883\u3067\u306e\u5b9f\u884c\u7d50\u679c\u306f\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\u3002\u5358\u7d14\u306a\u8db3\u3057\u7b97\u3092\u3057\u3066\u3044\u308b\u3060\u3051\u306a\u306e\u306b\u306a\u304b\u306a\u304b\u4e0d\u601d\u8b70\u3067\u3059\u304c\u3001\u3053\u308c\u304c\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u96e3\u3057\u3055\u306e\u4e00\u5074\u9762\u3067\u3059\u3002<\/p>\n<h4>\uff13-\uff13-\uff12\uff0e\u540c\u6642\u306b\u52d5\u304f\u3053\u3068\u306f\u3084\u3063\u304b\u3044\u306a\u554f\u984c\u3092\u751f\u3080<\/h4>\n<p>\u3053\u3046\u306a\u308b\u7406\u7531\u306f\u3001\u5909\u6570\u306e\u6570\u5024\u3092<span>+1<\/span>\u3059\u308b\u3060\u3051\u3067\u3082\u3001<span>Java<\/span>\u5185\u90e8\u3067\u306f\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u7d4c\u308b\u304b\u3089\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30b9\u30c6\u30c3\u30d7\u304c\u8907\u6570\u30b9\u30ec\u30c3\u30c9\u3067\u540c\u6642\u306b\u52d5\u304f\u3068\u3001\u7d50\u679c\u304c\u610f\u56f3\u3057\u305f\u3068\u304a\u308a\u306b\u306a\u3089\u306a\u3044\u306e\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u30b9\u30ec\u30c3\u30c9\u304c\u30e1\u30e2\u30ea\u4e0a\u306e\u5909\u6570<span>count<\/span>\u306e\u73fe\u5728\u5024\u3092\u8aad\u307f\u3001\u30b9\u30ec\u30c3\u30c9\u5185\u306b\u4e00\u6642\u7684\u306b\u6301\u3064<\/li>\n<li>\u30b9\u30ec\u30c3\u30c9\u5185\u3067\u73fe\u5728\u5024\u3092<span>+1<\/span>\u3059\u308b<\/li>\n<li>+1\u3057\u305f\u5024\u3092\u3001\u5909\u6570<span>count<\/span>\u304c\u3042\u308b\u30e1\u30e2\u30ea\u306b\u30b9\u30ec\u30c3\u30c9\u304c\u66f8\u304d\u623b\u3059<\/li>\n<\/ol>\n<p>\u4f8b\u3048\u3070\u3001<span>count<\/span>\u306e\u73fe\u5728\u306e\u5024\u304c<span>10<\/span>\u3060\u3068\u3057\u307e\u3059\u3002<span>2<\/span>\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u304c<span>count<\/span>\u3092\u300c\u540c\u6642\u306b\u300d\u8aad\u307f\u51fa\u3057\u305f\u306a\u3089\u3001<span>2<\/span>\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u304c<span>10<\/span>\u3068\u3044\u3046\u5024\u3092\u4e00\u6642\u7684\u306b\u6301\u3061\u307e\u3059\u3002<span>10<\/span>\u3092<span>+1<\/span>\u3059\u308c\u3070<span>11<\/span>\u3067\u3059\u304b\u3089\u3001<span>2<\/span>\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u305d\u308c\u305e\u308c\u66f8\u304d\u8fbc\u307f\u3092\u3059\u308c\u3070\u3001<span>count<\/span>\u306e\u5024\u306f<span>12<\/span>\u3067\u306f\u306a\u304f<span>11<\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304c\u5909\u6570\u30921\u3059\u308b\u307e\u3067.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304c\u5909\u6570\u30921\u3059\u308b\u307e\u3067.png\" alt=\"\u30b9\u30ec\u30c3\u30c9\u304c\u5909\u6570\u3092+1\u3059\u308b\u307e\u3067\" width=\"1078\" height=\"809\" class=\"alignnone size-full wp-image-2470\" srcset=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304c\u5909\u6570\u30921\u3059\u308b\u307e\u3067.png 1078w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304c\u5909\u6570\u30921\u3059\u308b\u307e\u3067-768x576.png 768w, https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/01\/\u30b9\u30ec\u30c3\u30c9\u304c\u5909\u6570\u30921\u3059\u308b\u307e\u3067-1024x768.png 1024w\" sizes=\"(max-width: 1078px) 100vw, 1078px\" \/><\/a><\/p>\n<p>\u5c11\u3057\u5c02\u9580\u7528\u8a9e\u3092\u4f7f\u3046\u306a\u3089\u3001\u5909\u6570<span>count<\/span>\u306f\u30d2\u30fc\u30d7\u9818\u57df\u306b\u3042\u308b\u306e\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u304c\u305d\u306e\u5024\u3092\u4f7f\u3063\u305f\u8a08\u7b97\u3092\u884c\u3046\u305f\u3081\u3001\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306e\u30b9\u30bf\u30c3\u30af\u9818\u57df\u3078\u4e00\u6642\u7684\u306b\u5024\u3092\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306b\u8d77\u3053\u308b\u73fe\u8c61\u3067\u3059\u3002<\/p>\n<p>\u5909\u6570\u306e\u5024\u3092<span>+1<\/span>\u3059\u308b\u3060\u3051\u3067\u3082\u3053\u308c\u3067\u3059\u304b\u3089\u3001\u3082\u3063\u3068\u3084\u3063\u304b\u3044\u306a\u554f\u984c\u304c\u8d77\u304d\u305d\u3046\u3067\u3059\u3002\u5b9f\u969b\u30b9\u30ec\u30c3\u30c9\u95a2\u9023\u3067\u306f\u3001\u3044\u304f\u3089\u3084\u3063\u3066\u3082\u518d\u73fe\u3067\u304d\u306a\u304b\u3063\u305f\u308a\u3001\u539f\u56e0\u304c\u3055\u3063\u3071\u308a\u5206\u304b\u3089\u305a\u89e3\u6c7a\u306e\u7cf8\u53e3\u3059\u3089\u3064\u304b\u3081\u306a\u3044\u554f\u984c\u3082\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4>\uff13-\uff13-\uff13\uff0e\u540c\u671f\u5316\u3067\u540c\u6642\u306b\u52d5\u304f\u3053\u3068\u3092\u9632\u3050<\/h4>\n<p>\u3053\u306e\u4f8b\u3067\u3001\u5e38\u306b\u7d50\u679c\u3092<span>10,000<\/span>\u306b\u3057\u305f\u3051\u308c\u3070\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u3078\u5909\u6570\u3092\u540c\u6642\u306b\u8aad\u307f\u66f8\u304d\u3055\u305b\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u540c\u6642\u306e\u5909\u6570\u306e\u8aad\u307f\u66f8\u304d\u3001\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u3092\u9632\u3050\u6a5f\u80fd\u304c\u3001\u540c\u671f\u5316\u3084\u6392\u4ed6\u30ed\u30c3\u30af\u3068\u4e00\u822c\u306b\u547c\u3070\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u4f8b\u3067\u306f\u3001<span>RunnableSample<\/span>\u306e\u30e1\u30bd\u30c3\u30c9<span>run<\/span>\u3092\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u540c\u6642\u306b\u52d5\u304b\u305b\u306a\u304f\u3059\u308c\u3070\u826f\u3055\u305d\u3046\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u3001<span>synchronized<\/span>\u3068\u3044\u3046\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u30e1\u30bd\u30c3\u30c9\u306e\u524d\u306b\u3064\u3051\u3066\u307f\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">RunnableSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class RunnableSample implements Runnable {\r\n    private int count;\r\n\r\n    \/\/ void\u306e\u524d\u306bsynchronized\u3092\u4ed8\u3051\u3066\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u6392\u4ed6\u5b9f\u884c\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u305f\r\n    public synchronized void run() {\r\n        for (int i = 0; i &lt; 1000; i++) {\r\n            count++;\r\n        }\r\n    }\r\n\r\n    int getCount() {\r\n        return count;\r\n    }\r\n}<\/pre>\n<p>\u3059\u308b\u3068\u3001\u7d50\u679c\u306f\u5e38\u306b<span>10,000<\/span>\u3067\u3059\u3002<span>synchronized<\/span>\u3068\u3044\u3046\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3088\u308a\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089<span>run<\/span>\u3068\u3044\u3046\u300c\u5909\u6570\u3092<span>+1<\/span>\u3059\u308b\u51e6\u7406\u300d\u304c\u540c\u6642\u5b9f\u884c\u3055\u308c\u306a\u304f\u306a\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u3082\u3057\u3053\u306e\u72b6\u614b\u3067\u540c\u6642\u306b\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u304c\u884c\u308f\u308c\u305f\u3089\u3001\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u6a29\u5229\u3092\u5f97\u305f\u30b9\u30ec\u30c3\u30c9\u4ee5\u5916\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u7d42\u4e86\u5f85\u3061\u3092\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u30e1\u30bd\u30c3\u30c9\u304c\u7d42\u308f\u3063\u305f\u3089\u3001\u307e\u305f\u3069\u308c\u304b\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u5b9f\u884c\u6a29\u3092\u5f97\u3066\u5b9f\u884c\u3057\u59cb\u3081\u307e\u3059\u3002<\/p>\n<p>Java\u3067\u306e\u540c\u671f\u5316\u3084\u6392\u4ed6\u30ed\u30c3\u30af\u306e\u65b9\u6cd5\u306f\u8907\u6570\u3042\u308a\u307e\u3059\u3002\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u6319\u3052\u3066\u304a\u304d\u307e\u3059\u306e\u3067\u3001\u8208\u5473\u306e\u3042\u308b\u65b9\u306f\u8abf\u3079\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u308c\u305e\u308c\u4e00\u9577\u4e00\u77ed\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u4f7f\u3044\u5206\u3051\u304c\u5fc5\u8981\u3067\u3059\u3088\u3002<\/p>\n<ul>\n<li><span>synchronized<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u7528<\/li>\n<li><span>synchronized<\/span>\u30d6\u30ed\u30c3\u30af\u306e\u4f7f\u7528<\/li>\n<li>\u5909\u6570\u3078\u306e<span>volatile<\/span>\u4fee\u98fe\u5b50\u306e\u6307\u5b9a<\/li>\n<li><span>java.util.concurrent.lock.ReentrantLock<\/span>\u306e\u4f7f\u7528<\/li>\n<li><span>java.util.concurrent.atomic.AtomicInteger<\/span>\u306a\u3069\u306e\u4f7f\u7528<\/li>\n<\/ul>\n<h3><span id=\"-Concurrent_UtilitiesExecutorJava_15\">\uff13-\uff14\uff0e\u3010\u767a\u5c55\u3011<span>Concurrent Utilities<\/span>\u3068<span>Executor<\/span>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<span>(Java 1.5<\/span>\uff5e<span>)<\/span><\/span><\/h3>\n<p>Java 1.5\u3067\u5c0e\u5165\u3055\u308c\u305f<span>Concurrent Utilities<\/span>\u3001\u7279\u306b\u305d\u306e\u4e2d\u306b\u542b\u307e\u308c\u308b<span>Executor<\/span>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u3082\u3063\u3068\u7c21\u5358\u306b\u4f7f\u3046\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>Java\u3082<span>13<\/span>\u3068\u306a\u3063\u305f\u4eca\u3067\u306f\u3001\u3053\u3053\u307e\u3067\u8aac\u660e\u3057\u3066\u304d\u305f<span>Thread<\/span>\u30af\u30e9\u30b9\u306f\u3042\u307e\u308a\u4f7f\u308f\u305a\u3001<span>Executor<\/span>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u3046\u306e\u304c\u666e\u901a\u3067\u3059\u3002<\/p>\n<p>\u3082\u3061\u308d\u3093\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u8003\u3048\u65b9\u306f\u540c\u3058\u3067\u3059\u3057\u3001<span>Thread<\/span>\u30af\u30e9\u30b9\u3082\u540c\u3058\u3088\u3046\u306b\u4f7f\u3048\u307e\u3059\u3002\u3067\u3082\u3001<span>Executor<\/span>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u306f\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3046\u4e0a\u3067\u4e0d\u4fbf\u3060\u3063\u305f\u5236\u7d04\u3084\u554f\u984c\u70b9\u304c\u591a\u304f\u89e3\u6d88\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Executor\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u89e3\u6d88\u3055\u308c\u305f\u5236\u7d04\u3084\u554f\u984c\u70b9\u306f\u3001\u4f8b\u3048\u3070\u3001<span>Thread<\/span>\u305d\u306e\u3082\u306e\u3092\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u7ba1\u7406\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u304b\u3063\u305f\u308a\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u5b9f\u884c\u7d50\u679c\u3092\u76f4\u63a5\u5f97\u3089\u308c\u306a\u3044\u306a\u3069\u3067\u3059\u3002<\/p>\n<h4>\uff13-\uff14-\uff11\uff0eExecutor\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4f8b<span>(Executors\/ExecutorService)<\/span><\/h4>\n<p>Executor\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u3046\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002<span>Runnable<\/span>\u3067\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u304b\u3059\u51e6\u7406\u3092\u4f5c\u308b\u306e\u306f\u540c\u3058\u3067\u3059\u3002\u3067\u3082\u3001<span>Thread<\/span>\u304c\u30d7\u30ed\u30b0\u30e9\u30e0\u4e2d\u306b\u3042\u308a\u307e\u305b\u3093\u3057\u3001\u898b\u305f\u3053\u3068\u306e\u306a\u3044\u30af\u30e9\u30b9\u3082\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">RunnableSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">class RunnableSample implements Runnable {\r\n    private int result;\r\n\r\n    public void run() {\r\n        for (int i = 1; i &lt;= 10; i++) {\r\n            result += i;\r\n        }\r\n    }\r\n\r\n    int getResult() {\r\n        return result;\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ExecutorServiceTest.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">import java.util.concurrent.Executors;\r\nimport java.util.concurrent.ExecutorService;\r\nimport java.util.concurrent.Future;\r\n\r\nclass ExecutorServiceTest {\r\n    public static void main(String[] args) {\r\n        RunnableSample r = new RunnableSample();\r\n        ExecutorService service = Executors.newSingleThreadExecutor();\r\n        Future f = service.submit(r);\r\n\r\n        try {\r\n            f.get();\r\n        } catch (ExecutionException | InterruptedException e) {\r\n        }\r\n\r\n        service.shutdown();\r\n        System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f\" + r.getResult() + \"\u3067\u3059\");\r\n    }\r\n}<\/pre>\n<p>Thread\u306e\u4ee3\u308f\u308a\u306b\u4f7f\u3046\u306e\u304c\u3001<span>Executors<\/span>\u3084<span>ExecutorService<\/span>\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30af\u30e9\u30b9\u306b\u9762\u5012\u306a\u30b9\u30ec\u30c3\u30c9\u306e\u7ba1\u7406\u3092\u3059\u3079\u3066\u4efb\u305b\u3066\u3001\u4f7f\u3046\u5074\u304c\u300c\u30b9\u30ec\u30c3\u30c9\u3092\u3053\u3093\u306a\u611f\u3058\u3067\u4f7f\u3044\u305f\u3044\u300d\u3068\u3001<span>Executors\/ExecutorService<\/span>\u3078\u4f1d\u3048\u307e\u3059\u3002<\/p>\n<p>Executors\u306f\u3001\u4f7f\u3046\u5074\u306e\u8981\u6c42\u306b\u5fdc\u3058\u305f<span>ExecutorService<\/span>\u3092\u4f5c\u308a\u307e\u3059\u3002\u3053\u306e\u4f8b\u3067\u306f\u3001<span>1<\/span>\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u7ba1\u7406\u3059\u308b<span>ExecutorService<\/span>\u3092\u8981\u6c42\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u3001<span>ExecutorService<\/span>\u3078\u52d5\u304b\u3059<span>Runnable<\/span>\u3092\u6e21\u3057\u3001\u5b9f\u884c\u3055\u305b\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Executors\/ExecutorService\u3067\u306f\u3001\u3044\u308f\u3086\u308b\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb<span>(thread pool)<\/span>\u3068\u547c\u3070\u308c\u308b\u6a5f\u80fd\u3082\u7c21\u5358\u306b\u4f7f\u3048\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u6d3b\u7528\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u306b\u7c21\u5358\u306b\u3001\u624b\u8efd\u306b\u4f5c\u308c\u308b\u306e\u3067\u3059\u3002<\/p>\n<h4>\uff13-\uff14-\uff12\uff0eExecutor\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4f8b<span>(Callable)<\/span><\/h4>\n<p>Executor\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u306f\u3001\u52d5\u304b\u3059\u51e6\u7406\u3092\u8868\u73fe\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3068\u3057\u3066<span>java.util.concurrent.Callable<\/span>\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<span>Callable<\/span>\u3092\u4f7f\u3046\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u5b9f\u884c\u7d50\u679c\u3092\u30b9\u30ec\u30c3\u30c9\u306e\u5916\u304b\u3089\u76f4\u63a5\u5f97\u3089\u308c\u308b\u306e\u3067\u3059\u3002<\/p>\n<p><strong><span class=\"f-marker-w\">CallableSample.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">import java.util.concurrent.Callable;\r\n\r\nclass CallableSample implements Callable&lt;Integer&gt; {\r\n    \/\/ \u623b\u308a\u5024\u3092\u623b\u305b\u308b\u3057\u3001\u30c1\u30a7\u30c3\u30af\u4f8b\u5916\u3082throw\u3067\u304d\u308b!!\r\n    public Integer call() throws Exception {\r\n        int result = 0;\r\n\r\n        for (int i = 1; i &lt;= 10; i++) {\r\n            result += i;\r\n        }\r\n\r\n        return result;\r\n    }\r\n}<\/pre>\n<p><strong><span class=\"f-marker-w\">ExecutorServiceTest.java<\/span><\/strong><\/p>\n<pre class=\"prettyprint lang:default decode:true\">import java.util.concurrent.Executors;\r\nimport java.util.concurrent.ExecutorService;\r\nimport java.util.concurrent.Future;\r\n\r\nclass ExecutorServiceTest {\r\n    public static void main(String[] args) {\r\n        CallableSample c = new CallableSample();\r\n        ExecutorService service = Executors.newSingleThreadExecutor();\r\n        Future&lt;Integer&gt; f = service.submit(c);\r\n\r\n        try {\r\n            System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u306f\" + f.get() + \"\u3067\u3059\");\r\n        } catch (ExecutionException e) {\r\n            System.out.println(\"\u30b9\u30ec\u30c3\u30c9\u3067\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3057\u305f\");\r\n            e.getCause().printStackTrace();\r\n        } catch (InterruptedException e) {\r\n        }\r\n\r\n        service.shutdown();\r\n    }\r\n}<\/pre>\n<p>Future\u3092\u9593\u306b\u631f\u3080\u306e\u3067\u5c11\u3005\u3084\u3084\u3053\u3057\u3044\u3067\u3059\u304c\u3001\u30b9\u30ec\u30c3\u30c9\u3067\u306e\u51e6\u7406\u7d50\u679c\u3092<span>Future.get<\/span>\u3067\u5f97\u3089\u308c\u308b\u306e\u3067\u3001\u5148\u8ff0\u306e\u30dd\u30fc\u30ea\u30f3\u30b0\u3084\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u4e0d\u8981\u3068\u306a\u308a\u3001\u3088\u308a\u76f4\u611f\u7684\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u308c\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001<span>Callable<\/span>\u3092\u4f7f\u3046\u3068\u30b9\u30ec\u30c3\u30c9\u3067\u52d5\u304b\u3059\u51e6\u7406\u304b\u3089\u30c1\u30a7\u30c3\u30af\u4f8b\u5916\u3092<span>throw<\/span>\u3067\u304d\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u305f\u5074\u304b\u3089\u3082\u30b9\u30ec\u30c3\u30c9\u304b\u3089<span>throw<\/span>\u3055\u308c\u305f\u4f8b\u5916\u3092\u53d6\u5f97\u3067\u304d\u305f\u308a\u3082\u3059\u308b\u306e\u3067\u3059\u3002<\/p>\n<h4>\uff13-\uff14-\uff13\uff0eConcurrent Utilities\u306e\u4ed6\u306e\u30af\u30e9\u30b9<\/h4>\n<p>Concurrent Utilities\u3067\u306f\u3001<span>ExecutorService<\/span>\u3084<span>Callable<\/span>\u4ee5\u5916\u306b\u3082\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4fbf\u5229\u306a\u30af\u30e9\u30b9\u7fa4\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li>\u5024\u3078\u306e\u64cd\u4f5c\u304c\u540c\u671f\u5316\u3055\u308c\u305f<span>AtomicInteger<\/span>\u3001<span>AtomicBoolean<\/span>\u306a\u3069<\/li>\n<li>\u6392\u4ed6\u30ed\u30c3\u30af\u3092\u7c21\u5358\u306b\u884c\u3046\u305f\u3081\u306e<span>ReentrantLock<\/span><\/li>\n<li>\u540c\u671f\u5316\u306e\u51e6\u7406\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u6539\u5584\u3055\u308c\u305f<span>ConcurrentArrayList<\/span>\u306a\u3069<\/li>\n<li>\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u306e\u5f85\u3061\u5408\u308f\u305b\u304c\u3067\u304d\u308b<span>CyclicBarrier<\/span>\u3001<span>Semaphore<\/span>\u3001<span>Phaser<\/span>\u306a\u3069<\/li>\n<li>\u5b9a\u671f\u7684\u306a\u51e6\u7406\u3092\u30b9\u30ec\u30c3\u30c9\u3067\u5b9f\u884c\u3067\u304d\u308b<span>ScheduledExecutorService<\/span><\/li>\n<li>\u30b9\u30ec\u30c3\u30c9\u5b9f\u884c\u5f8c\u306e\u5f8c\u7d9a\u51e6\u7406\u3092\u6307\u5b9a\u3067\u304d\u308b<span>CompletableFuture<\/span><\/li>\n<li>\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u51e6\u7406\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e<span>ForkJoinPool\/ForkJoinTask<\/span>\u306a\u3069<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u30af\u30e9\u30b9\u3067\u30b9\u30ec\u30c3\u30c9\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306f\u5168\u90e8\u5b9f\u73fe\u3067\u304d\u308b\u3001\u3068\u8a00\u3063\u3066\u3082\u904e\u8a00\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305c\u3072\u3053\u308c\u3089\u306e\u30af\u30e9\u30b9\u3092\u5b66\u3073\u3001\u30b9\u30ec\u30c3\u30c9\u3092\u6d3b\u7528\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2><span id=\"i-4\">\uff14\uff0e\u307e\u3068\u3081<\/span><\/h2>\n<p>\u30b9\u30ec\u30c3\u30c9\u3068\u306f\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u5358\u4f4d\u3067\u3059\u3002<span>Java<\/span>\u3067\u306f<span>Thread<\/span>\u30af\u30e9\u30b9\u3067\u30b9\u30ec\u30c3\u30c9\u306e\u6a5f\u80fd\u3092\u4f7f\u3044\u307e\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u3068\u30bb\u30c3\u30c8\u306a\u306e\u306f\u3001<span>Runnable<\/span>\u3068\u3044\u3046\u300c\u5b9f\u884c\u3059\u308b\u51e6\u7406\u300d\u3092\u8868\u73fe\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3067\u3059\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u306e\u96e3\u3057\u3055\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u3084\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u8907\u6570\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u540c\u6642\u306b\u547c\u3073\u51fa\u3055\u308c\u305f\u308a\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u90e8\u5206\u3067\u3059\u3002\u305d\u308c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u540c\u671f\u5316\u3084\u6392\u4ed6\u5236\u5fa1\u306a\u3069\u306e\u3044\u308d\u3044\u308d\u306a\u624b\u6bb5\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u73fe\u6642\u70b9\u3067\u30b9\u30ec\u30c3\u30c9\u3092\u6271\u3046\u306b\u306f\u3001<span>Executor<\/span>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u3046\u306e\u304c\u666e\u901a\u3067\u3059\u3002<span>Thread<\/span>\u3092\u305d\u306e\u307e\u307e\u4f7f\u3046\u6642\u306e\u554f\u984c\u70b9\u304c\u89e3\u6d88\u3055\u308c\u307e\u3059\u3002<span>Cocurrent Utilities<\/span>\u306b\u306f\u3001\u3055\u3089\u306b\u4fbf\u5229\u306a\u30af\u30e9\u30b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30ec\u30c3\u30c9\u306e\u7406\u89e3\u306f\u3001<span>Java<\/span>\u4eee\u60f3\u30de\u30b7\u30f3\u304c\u3069\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u304b\u3057\u3066\u3044\u308b\u306e\u304b\u306e\u6df1\u3044\u7406\u89e3\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u305c\u3072\u3053\u306e\u8a18\u4e8b\u3092\u304d\u3063\u304b\u3051\u306b\u3001<span>Java<\/span>\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3059\u308b\u4e00\u6b69\u3092\u8e0f\u307f\u51fa\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u306e\u30b9\u30ec\u30c3\u30c9(thread)\u3068\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u8907\u6570\u306e\u51e6\u7406\u3092\u540c\u6642\u306b\u52d5\u304b\u3059\u4ed5\u7d44\u307f\u3067\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u3092Java\u3067\u4f7f\u3046\u305f\u3081\u306e\u30af\u30e9\u30b9java.lang.Thread\u3092\u6307\u3059\u8a00\u8449\u3067\u3082\u3042\u308a\u307e\u3059\u3002 \u3055\u3066\u3001\u591a\u304f\u306e\u4f5c\u696d\u306f\u4eba\u304c\u624b\u5206\u3051\u3059\u308c\u3070\u65e9 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":804,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/2464"}],"collection":[{"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/comments?post=2464"}],"version-history":[{"count":7,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/2464\/revisions"}],"predecessor-version":[{"id":6079,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/2464\/revisions\/6079"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/media\/804"}],"wp:attachment":[{"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/media?parent=2464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/categories?post=2464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}