{"id":1417,"date":"2019-02-20T19:00:03","date_gmt":"2019-02-20T10:00:03","guid":{"rendered":"https:\/\/www.bold.ne.jp\/engineer-club\/?p=1417"},"modified":"2025-10-06T17:10:12","modified_gmt":"2025-10-06T08:10:12","slug":"java-trim","status":"publish","type":"post","link":"https:\/\/www.bold.ne.jp\/engineer-club\/java-trim","title":{"rendered":"Java\u306etrim\u3068\u306f\uff1f\u534a\u89d2\u30fb\u5168\u89d2\u7a7a\u767d\u3092\u524a\u9664\u3059\u308b\u305f\u3081\u306etrim\u306e\u4f7f\u3044\u65b9"},"content":{"rendered":"<p><strong>String.trim\u306f\u3001\u6587\u5b57\u5217\u306e\u524d\u5f8c\u306b\u3042\u308b\u7a7a\u767d\u6587\u5b57\u3092\u524a\u9664\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u5b9f\u969b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3082\u3001\u304b\u306a\u308a\u983b\u7e41\u306b\u4f7f\u3046\u3082\u306e\u3067\u3059\u3002<\/strong><\/p>\n<p>\u305f\u3060\u3001\u3053\u3053\u3067\u300c\u7a7a\u767d\u300d\u3068\u8a00\u3063\u305f\u6642\u306b\u3001\u30a2\u30b8\u30a2\u306e\u7247\u9685\u306b\u751f\u304d\u308b\u65e5\u672c\u4eba\u306e\u7acb\u5834\u306e\u5f31\u3055\u3092\u611f\u3058\u308b\u6642\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u3044\u308f\u3086\u308b\u5168\u89d2\u7a7a\u767d\u3082\u524a\u9664\u3057\u305f\u3044\u3067\u3059\u3088\u306d\u3002\u3067\u3082\u3001\u6b8b\u5ff5\u306a\u304c\u3089<span>String.trim<\/span>\u306f\u5168\u89d2\u7a7a\u767d\u3092\u524a\u9664\u3057\u3066\u306f\u304f\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u4f55\u3068\u304b\u3057\u305f\u3044\u3067\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u524a\u9664\u3057\u305f\u3044\u6587\u5b57\u306f\u7a7a\u767d\u3060\u3051\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<span>&#8220;&#8221;<\/span>\u3084<span>&#8221;<\/span>\u3068\u3044\u3063\u305f\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u524a\u9664\u3057\u305f\u3044\u6642\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306b\u3001<span>SQL<\/span>\u306b\u306f\u524d\u3084\u5f8c\u308d\u304b\u3089\u3060\u3051\u6587\u5b57\u3092\u524a\u9664\u3057\u3066\u304f\u308c\u308b<span>LTRIM<\/span>\u3084<span>RTRIM<\/span>\u304c\u3042\u308b\u306e\u306b\u3001<span>Java<\/span>\u306b\u306f\u306a\u305c\u306a\u3044\u306e\u3060\u308d\u3046<span>\u2026<\/span>\u3068\u601d\u3063\u3066\u3044\u308b\u65b9\u3082\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<span>String.trim<\/span>\u3092\u8db3\u639b\u304b\u308a\u306b\u3001<strong>\u6587\u5b57\u5217\u304b\u3089\u4f59\u5206\u306a\u6587\u5b57\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/strong>\u3092\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u4f8b\u3092\u305f\u304f\u3055\u3093\u4ea4\u3048\u306a\u304c\u3089\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/p>\n<p>\u203b\u3053\u306e\u8a18\u4e8b\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u3001<span>Java 11<\/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=\"#Javatrim\">\uff11\uff0e\u3010Java\u3011\u6587\u5b57\u5217\u306e\u7a7a\u767d\u6587\u5b57\u3092\u524a\u9664\u3059\u308btrim<\/a><ul><li><a href=\"#-Stringtrim\">\uff11-\uff11\uff0eString.trim\u306f\u7247\u5074\u306e\u7a7a\u767d\u3060\u3051\u3092\u524a\u9664\u3067\u304d\u306a\u3044<\/a><\/li><li><a href=\"#-Stringtrim-2\">\uff11-\uff12\uff0eString.trim\u306f\u7a7a\u767d\u6271\u3044\u3059\u308b\u6587\u5b57\u304c\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b<\/a><\/li><li><a href=\"#-Stringtrim-3\">\uff11-\uff13\uff0eString.trim\u306f\u5168\u89d2\u7a7a\u767d\u3092\u524a\u9664\u3057\u3066\u304f\u308c\u306a\u3044<\/a><\/li><\/ul><\/li><li><a href=\"#stripstripLeadingstripTrailingJava_11\">\uff12\uff0e\u5168\u89d2\u7a7a\u767d\u3082\u524a\u9664\u3059\u308bstrip\/stripLeading\/stripTrailing\u3010Java 11\uff5e\u3011<\/a><ul><li><a href=\"#-stripCharacterisWhitespace\">\uff12-\uff11\uff0estrip\u304c\u524a\u9664\u3059\u308b\u7a7a\u767d\u306fCharacter.isWhitespace\u304c\u5224\u65ad\u3059\u308b<\/a><\/li><\/ul><\/li><li><a href=\"#trim\">\uff13\uff0e\u6b32\u3057\u3044trim\u3092\u81ea\u5206\u3067\u4f5c\u308b<\/a><ul><li><a href=\"#-replaceFirstreplaceAlltrim\">\uff13-\uff11\uff0e\u3010\u304a\u624b\u8efd\u3011replaceFirst\/replaceAll\u306b\u3088\u308btrim<\/a><\/li><li><a href=\"#i\">\uff13-\uff12\uff0e\u6587\u5b57\u3067\u30eb\u30fc\u30d7\u3057\u3066\u5224\u65ad\u3059\u308b<\/a><\/li><\/ul><\/li><li><a href=\"#trim-2\">\uff14\uff0e\u3010\u4fbf\u5229\u3011\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u306etrim\u7684\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046<\/a><ul><li><a href=\"#-Apache_Commons-LangStringUtils\">\uff14-\uff11\uff0eApache Commons-Lang\u306eStringUtils\u3092\u4f7f\u3046<\/a><\/li><li><a href=\"#-GuavaCharMatcher\">\uff14-\uff12\uff0eGuava\u306eCharMatcher\u3092\u4f7f\u3046<\/a><\/li><\/ul><\/li><li><a href=\"#trimstrip\">\uff15\uff0e\u3010\u53c2\u8003\u3011trim\/strip\u3067\u77e5\u3063\u3066\u304a\u304f\u3068\u5f79\u7acb\u3064\u77e5\u8b58<\/a><ul><li><a href=\"#-Unicode\">\uff15-\uff11\uff0e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u306fUnicode\u3067\u306e\u6587\u5b57\u306e\u9023\u756a<\/a><\/li><li><a href=\"#-CharacterisWhitespace\">\uff15-\uff12\uff0eCharacter.isWhitespace\u304c\u7a7a\u767d\u6271\u3044\u3059\u308b\u6587\u5b57<\/a><\/li><\/ul><\/li><li><a href=\"#i-2\">\uff16\uff0e\u307e\u3068\u3081<\/a><\/li><\/ul><\/div>\n<h2><span id=\"Javatrim\">\uff11\uff0e\u3010Java\u3011\u6587\u5b57\u5217\u306e\u7a7a\u767d\u6587\u5b57\u3092\u524a\u9664\u3059\u308b<span>trim<\/span><\/span><\/h2>\n<p>\u307e\u305a\u306f\u57fa\u672c\u304b\u3089\u884c\u304d\u307e\u3057\u3087\u3046\u3002\u6587\u5b57\u5217\u306e\u524d\u5f8c\u306b\u3042\u308b\u300c\u7a7a\u767d\u300d\u3092\u524a\u9664\u3059\u308b\u306b\u306f\u3001<span>String.trim<\/span>\u3092\u4f7f\u3044\u307e\u3059\u3002\u623b\u308a\u5024\u306f\u3001\u524d\u5f8c\u304b\u3089\u7a7a\u767d\u304c\u524a\u9664\u3055\u308c\u305f\u6587\u5b57\u5217\u3067\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">\/\/ Java 11\u306eJavadoc\u3088\u308a\u629c\u7c8b\r\npublic String trim()\r\n\u623b\u308a\u5024:\r\n\t\u5024\u304c\u3053\u306e\u6587\u5b57\u5217\u3067\u3001\u5148\u982d\u3068\u672b\u5c3e\u306e\u3059\u3079\u3066\u306e\u30b9\u30da\u30fc\u30b9\u304c\u524a\u9664\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u5148\u982d\u307e\u305f\u306f\u672b\u5c3e\u306e\u30b9\u30da\u30fc\u30b9\u304c\u306a\u3044\u5834\u5408\u306f\u6587\u5b57\u5217\u3002<\/pre>\n<pre class=\"prettyprint lang:default decode:true\">String str = \"  A B C  \"; \/\/ \u524d\u5f8c\u306b\u7a7a\u767d(' ')\u304c\u4ed8\u3044\u3066\u3044\u308b\r\nString trimmed = str.trim();\r\nSystem.out.println(trimmed); \/\/ \u2192 \"ABC\"<\/pre>\n<p>\u3067\u3059\u304c\u3001<span>trim<\/span>\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u56f0\u3063\u305f\u3068\u3053\u308d\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3092\u4e00\u7dd2\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span id=\"-Stringtrim\">\uff11-\uff11\uff0eString.trim\u306f\u7247\u5074\u306e\u7a7a\u767d\u3060\u3051\u3092\u524a\u9664\u3067\u304d\u306a\u3044<\/span><\/h3>\n<p>trim\u306f\u5e38\u306b\u6587\u5b57\u5217\u306e\u4e21\u5074\u304b\u3089\u7a7a\u767d\u3092\u524a\u9664\u3057\u307e\u3059\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u7247\u5074\u306e\u7a7a\u767d\u3060\u3051\u3092\u524a\u9664\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u6587\u7ae0\u3084\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u6587\u5b57\u5217\u5148\u982d\u306e\u7a7a\u767d\u3084\u30bf\u30d6\u3078\u306f\u610f\u5473\u3092\u4e0e\u3048\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u3001\u6d88\u3057\u305f\u304f\u306a\u3044\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30bf\u30d6\u3092\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u4f7f\u3063\u3066\u3044\u305f\u308a\u3059\u308b\u5834\u5408\u306f\u3001\u5f8c\u308d\u306e\u7a7a\u767d\u3060\u3051\u6d88\u3057\u305f\u3044\u3068\u304b<span>\u2026<\/span>\u3002<span>trim<\/span>\u306f\u305d\u3046\u3044\u3046\u7528\u9014\u306b\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002<\/p>\n<h3><span id=\"-Stringtrim-2\">\uff11-\uff12\uff0eString.trim\u306f\u7a7a\u767d\u6271\u3044\u3059\u308b\u6587\u5b57\u304c\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b<\/span><\/h3>\n<p>trim\u304c\u7a7a\u767d\u6271\u3044\u3059\u308b\u6587\u5b57\u306f\u56fa\u5b9a\u3055\u308c\u3066\u3044\u3066\u3001\u5909\u66f4\u3067\u304d\u307e\u305b\u3093\u3002<span>String.trim<\/span>\u306e<span>Javadoc<\/span>\u306b\u306f\u3053\u3046\u66f8\u3044\u3066\u3042\u308a\u307e\u3059<span>(Java 11<\/span>\u306e\u65e5\u672c\u8a9e\u7248<span>\/<\/span>\u82f1\u8a9e\u7248<span>Javadoc)<\/span>\u3002<\/p>\n<blockquote>\n<p>\u5024\u304c\u3053\u306e\u6587\u5b57\u5217\u3067\u3001\u5148\u982d\u3068\u672b\u5c3e\u306e\u3059\u3079\u3066\u306e\u30b9\u30da\u30fc\u30b9\u304c\u524a\u9664\u3055\u308c\u3001\u30b3\u30fc\u30c9\u30fb\u30dd\u30a4\u30f3\u30c8\u304c<span>&#8216;U+0020&#8217; (<\/span>\u7a7a\u767d\u6587\u5b57<span>)<\/span>\u4ee5\u4e0b\u306e\u6587\u5b57\u3067\u30b9\u30da\u30fc\u30b9\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>Returns a string whose value is this string, with all leading and trailing space removed, where space is defined as any character whose codepoint is less than or equal to &#8216;U+0020&#8217; (the space character).<\/p>\n<\/blockquote>\n<p>\u3064\u307e\u308a\u3001\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u7a7a\u767d\u4ee5\u4e0b\u306e\u6587\u5b57\u3092\u3001\u6587\u5b57\u5217\u306e\u4e21\u7aef\u304b\u3089\u524a\u9664\u3057\u3066\u304f\u308c\u307e\u3059<span>(\u203b<\/span>\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u3064\u3044\u3066\u306f\u5f8c\u8ff0\u3057\u307e\u3059<span>)<\/span>\u3002\u5bfe\u8c61\u306e\u6587\u5b57\u306f\u3001\u30bf\u30d6\u3084\u6539\u884c\u3001\u8272\u3005\u306a\u5236\u5fa1\u6587\u5b57\u306a\u3069\u3001\u666e\u901a\u306f\u5370\u5b57\u3057\u306a\u3044\u6587\u5b57\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f<span>Java 1.0<\/span>\u304b\u3089\u306e<span>trim<\/span>\u306e\u4ed5\u69d8\u3067\u3059<span>(Javadoc<\/span>\u306b\u660e\u78ba\u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u306e\u306f\u3001\u6050\u3089\u304f<span>1.1<\/span>\u304b\u3089<span>)<\/span>\u3002\u52d5\u4f5c\u3092\u5909\u3048\u308b\u3068\u904e\u53bb\u306b\u4f5c\u3063\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u52d5\u304b\u306a\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u3001\u304d\u3063\u3068\u305a\u3063\u3068\u3053\u306e\u307e\u307e\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3><span id=\"-Stringtrim-3\">\uff11-\uff13\uff0eString.trim\u306f\u5168\u89d2\u7a7a\u767d\u3092\u524a\u9664\u3057\u3066\u304f\u308c\u306a\u3044<\/span><\/h3>\n<p>\u82f1\u8a9e\u74b0\u5883\u306a\u3089\u3053\u306e<span>trim<\/span>\u3067\u307e\u3042\u5145\u5206\u306a\u306e\u3067\u3059\u304c\u3001\u305d\u3046<span>\u2026trim<\/span>\u306f\u3044\u308f\u3086\u308b\u5168\u89d2\u7a7a\u767d\u3092\u7a7a\u767d\u3068\u3057\u3066\u8a8d\u8b58\u3057\u3066\u304f\u308c\u305a\u3001\u524a\u9664\u3057\u307e\u305b\u3093\u3002\u5fc5\u8981\u306a\u3089\u81ea\u5206\u3067\u51e6\u7406\u3092\u4f5c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u65e5\u672c\u4eba\u306b\u3068\u3063\u3066\u306f\u3001\u5c11\u3057\u4f7f\u3044\u3065\u3089\u3044\u3067\u3059\u3088\u306d\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">String str = \" \u3000 A B C \u3000 \"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\u7a7a\u767d\u3042\u308a\r\nString trimmed = str.trim();\r\nSystem.out.println(trimmed); \/\/ \u2192 \"\u3000 A B C \u3000\"\u3001trim\u306f\u5168\u89d2\u7a7a\u767d\u3092\u524a\u9664\u3057\u3066\u304f\u308c\u306a\u3044\u2026<\/pre>\n<h2><span id=\"stripstripLeadingstripTrailingJava_11\">\uff12\uff0e\u5168\u89d2\u7a7a\u767d\u3082\u524a\u9664\u3059\u308b<span>strip\/stripLeading\/stripTrailing<\/span>\u3010<span>Java 11<\/span>\uff5e\u3011<\/span><\/h2>\n<p>Java 11\u3067<span>String.strip<\/span>\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<span>strip<\/span>\u306f\u3001\u5168\u89d2\u7a7a\u767d\u3082\u542b\u3080\u5e83\u3044\u610f\u5473\u3067\u306e\u300c\u7a7a\u767d\u300d\u3092\u524a\u9664\u3057\u3066\u304f\u308c\u307e\u3059\u3002<span>strip<\/span>\u306e\u4ef2\u9593\u3068\u3057\u3066\u3001\u524d\u304b\u3089\u3060\u3051\u524a\u9664\u3059\u308b<span>stripLeading<\/span>\u3001\u5f8c\u308d\u304b\u3089\u3060\u3051\u524a\u9664\u3059\u308b<span>stripTrailing<\/span>\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">\/\/ Java 11\u306eJavadoc\u3088\u308a\u629c\u7c8b\r\npublic String strip()\r\n\u623b\u308a\u5024:\r\n\t\u5024\u304c\u3053\u306e\u6587\u5b57\u5217\u3067\u3001\u5148\u982d\u3068\u672b\u5c3e\u306e\u7a7a\u767d\u304c\u3059\u3079\u3066\u524a\u9664\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u5217<\/pre>\n<pre class=\"prettyprint lang:default decode:true\">\/\/ Java 11\u306eJavadoc\u3088\u308a\u629c\u7c8b\r\npublic String stripLeading()\r\n\u623b\u308a\u5024:\r\n\t\u5024\u304c\u3053\u306e\u6587\u5b57\u5217\u3067\u3001\u5148\u982d\u306b\u7a7a\u767d\u304c\u3059\u3079\u3066\u524a\u9664\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u5217<\/pre>\n<pre class=\"prettyprint lang:default decode:true\">\/\/ Java 11\u306eJavadoc\u3088\u308a\u629c\u7c8b\r\npublic String stripTrailing()\r\n\u623b\u308a\u5024:\r\n\t\u5024\u304c\u3053\u306e\u6587\u5b57\u5217\u3067\u3001\u5f8c\u7d9a\u306e\u7a7a\u767d\u304c\u3059\u3079\u3066\u524a\u9664\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u5217<\/pre>\n<pre class=\"prettyprint lang:default decode:true\">String str = \" \u3000 A B C \u3000 \"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\/\u534a\u89d2\u7a7a\u767d\u3042\u308a\r\nString stripped1 = str.strip();\r\nString stripped2 = str.stripLeading();\r\nString stripped3 = str.stripTrailing();\r\nSystem.out.println(stripped1); \/\/ \u2192 \"A B C\"\u3001\u5168\u89d2\u7a7a\u767d\u3082\u524a\u9664\u3055\u308c\u305f!!\r\nSystem.out.println(stripped2); \/\/ \u2192 \"A B C \u3000 \"\u3001\u6587\u5b57\u5217\u306e\u524d\u306e\u7a7a\u767d\u3060\u3051\u524a\u9664\u3055\u308c\u305f!!\r\nSystem.out.println(stripped3); \/\/ \u2192 \" \u3000 A B C\"\u3001\u6587\u5b57\u5217\u306e\u5f8c\u308d\u306e\u7a7a\u767d\u3060\u3051\u524a\u9664\u3055\u308c\u305f!!<\/pre>\n<h3><span id=\"-stripCharacterisWhitespace\">\uff12-\uff11\uff0estrip\u304c\u524a\u9664\u3059\u308b\u7a7a\u767d\u306f<span>Character.isWhitespace<\/span>\u304c\u5224\u65ad\u3059\u308b<\/span><\/h3>\n<p>strip\u304c\u524a\u9664\u3059\u308b\u7a7a\u767d\u306f\u3001<span>Character.isWhitespace<\/span>\u304c<span>true<\/span>\u3092\u623b\u3059\u6587\u5b57\u3067\u3059\u3002<span>strip<\/span>\u306e<span>Javadoc<\/span>\u306e\u8a18\u8ff0\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3001\u300c<span>white space<\/span>\u300d\u306e\u90e8\u5206\u306b\u306f<span>Character.isWhitespace<\/span>\u3078\u306e\u30cf\u30a4\u30d1\u30fc\u30ea\u30f3\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<blockquote>\n<p>\u5024\u304c\u3053\u306e\u6587\u5b57\u5217\u3067\u3042\u308a\u3001\u5148\u982d\u3068\u672b\u5c3e\u306e\u3059\u3079\u3066\u306e<span>white space<\/span>\u304c\u524a\u9664\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>Returns a string whose value is this string, with all leading and trailing white space removed.<\/p>\n<\/blockquote>\n<p>\u305d\u3057\u3066\u3001<span>Character.isWhitespace<\/span>\u306e<span>Javadoc<\/span>\u3067\u306e\u8a18\u8ff0\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002\u73fe\u5b9f\u4e16\u754c\u3067\u7a7a\u767d\u6271\u3044\u3055\u308c\u308b\u6587\u5b57\u306f\u3001\u5168\u89d2\u7a7a\u767d\u3092\u542b\u3081\u3001\u5927\u4f53\u306f\u305d\u306e\u7bc4\u56f2\u5185\u3067\u3059\u3002\u5b9f\u969b\u306b\u3069\u306e\u6587\u5b57\u304c\u5bfe\u8c61\u304b\u306f\u5225\u306e\u7ae0\u3067\u7c21\u5358\u306b\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/p>\n<blockquote>\n<p>\u6307\u5b9a\u3055\u308c\u305f\u6587\u5b57<span>(Unicode<\/span>\u30b3\u30fc\u30c9\u30fb\u30dd\u30a4\u30f3\u30c8<span>)<\/span>\u304c<span>Java<\/span>\u306e\u57fa\u6e96\u306b\u5f93\u3063\u305f\u7a7a\u767d\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3057\u307e\u3059\u3002 \u6b21\u306e\u57fa\u6e96\u306e\u3069\u308c\u304b\u3092\u6e80\u305f\u3059\u5834\u5408\u306b\u3060\u3051\u3001<span>Java<\/span>\u306e\u7a7a\u767d\u6587\u5b57\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>Determines if the specified character (Unicode code point) is white space according to Java. A character is a Java whitespace character if and only if it satisfies one of the following criteria:<\/p>\n<p>&nbsp;<\/p>\n<\/blockquote>\n<h2><span id=\"trim\">\uff13\uff0e\u6b32\u3057\u3044<span>trim<\/span>\u3092\u81ea\u5206\u3067\u4f5c\u308b<\/span><\/h2>\n<p>Strin.trim\u306e\u4e0d\u4fbf\u3055\u3084\u3001<span>Java 11<\/span>\u3067\u306e<span>strip<\/span>\u3068\u305d\u306e\u4ef2\u9593\u305f\u3061\u304c\u4fbf\u5229\u306a\u306e\u306f\u5206\u304b\u308a\u307e\u3057\u305f\u3002\u3067\u3082\u3001<span>Java 11<\/span>\u3067\u306f\u306a\u3044\u74b0\u5883\u3067\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u3084\u306f\u308a\u3001\u6b32\u3057\u3044\u3082\u306e\u306f\u81ea\u5206\u3067\u4f5c\u308b\u304b\u3001\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u7ae0\u3067\u306f\u3001\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u6301\u3064<span>trim<\/span>\u3092\u81ea\u5206\u81ea\u8eab\u3067\u4f5c\u308b\u65b9\u6cd5\u3092\u63a2\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n<h3><span id=\"-replaceFirstreplaceAlltrim\">\uff13-\uff11\uff0e\u3010\u304a\u624b\u8efd\u3011<span>replaceFirst\/replaceAll<\/span>\u306b\u3088\u308b<span>trim<\/span><\/span><\/h3>\n<p>\u4e00\u756a\u7c21\u5358\u306a\u306e\u306f\u3001\u6587\u5b57\u5217\u3092\u7f6e\u63db\u3059\u308b\u30e1\u30bd\u30c3\u30c9<span>String.replaceFirst<\/span>\u3084<span>replaceAll<\/span>\u3092\u4f7f\u3046\u3082\u306e\u3067\u3059\u3002<span>replaceFirst\/replaceAll<\/span>\u3067\u7f6e\u63db\u3059\u308b\u6587\u5b57\u3092\u6307\u5b9a\u3059\u308b\u306b\u306f\u3001\u6b63\u898f\u8868\u73fe\u3068\u547c\u3070\u308c\u308b\u30d1\u30bf\u30fc\u30f3\u304c\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u5168\u89d2\u30fb\u534a\u89d2\u7a7a\u767d\u4e21\u5bfe\u5fdc\u306e<span>trim<\/span>\u3092\u3057\u305f\u3051\u308c\u3070\u3001\u6b63\u898f\u8868\u73fe\u3068\u3057\u3066<span> \\h <\/span>\u3092\u6307\u5b9a\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">String str = \" \u3000 A B C \u3000 \"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\/\u534a\u89d2\u7a7a\u767d\u3042\u308a\r\nString replaced1 = str.replaceFirst(\"^[\\\\h]+\", \"\").replaceFirst(\"[\\\\h]+$\", \"\");\r\nString replaced2 = str.replaceFirst(\"^[\\\\h]+\", \"\");\r\nString replaced3 = str.replaceFirst(\"[\\\\h]+$\", \"\");\r\nSystem.out.println(replaced1); \/\/ \u2192 \"A B C\"\r\nSystem.out.println(replaced2); \/\/ \u2192 \"A B C \u3000 \"\r\nSystem.out.println(replaced3); \/\/ \u2192 \" \u3000 A B C\"<\/pre>\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001\u5148\u982d<span>(^)<\/span>\u306e\u5f8c\u3068\u672b\u5c3e<span>($)<\/span>\u306e\u524d\u3067\u7a7a\u767d\u6271\u3044\u3057\u305f\u3044\u6587\u5b57\u304c\u3042\u308c\u3070\u3001\u305d\u308c\u3092<span>&#8220;&#8221;<\/span>\u306b\u7f6e\u63db\u3057\u3066\u3044\u308b\u3060\u3051\u3067\u3059\u3002\u524d\u3060\u3051\u3001\u5f8c\u308d\u3060\u3051\u3092<span>trim<\/span>\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u5bfe\u5fdc\u3059\u308b<span>replaceFirst<\/span>\u3060\u3051\u3092\u547c\u3073\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3053\u308c\u3089\u3092\u30e1\u30bd\u30c3\u30c9\u306b\u3057\u3066\u307f\u308b\u3068\u3001\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u3002<span>null<\/span>\u3068\u6587\u5b57\u6570\u306e\u30c1\u30a7\u30c3\u30af\u3060\u3051\u8ffd\u52a0\u3057\u305f\u611f\u3058\u3067\u3059\u306d\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">String strip(String str) {\r\n\treturn stripTrailing(stripLeading(str));\r\n}\r\n\r\nString stripLeading(String str) {\r\n\tif (str == null || str.isEmpty()) {\r\n\t\treturn str;\r\n\t}\r\n\r\n\treturn str.replaceFirst(\"^[\\\\h]+\", \"\");\r\n}\r\n\r\nString stripTrailing(String str) {\r\n\tif (str == null || str.isEmpty()) {\r\n\t\treturn str;\r\n\t}\r\n\r\n\treturn str.replaceFirst(\"[\\\\h]+$\", \"\");\r\n}<\/pre>\n<p>\u306a\u304a\u3001\u3053\u306e\u4f8b\u3067\u306f\u305f\u307e\u305f\u307e\u7a7a\u767d\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u7f6e\u63db\u3057\u305f\u3044\u6587\u5b57\u306f\u6b63\u898f\u8868\u73fe\u3067\u81ea\u7531\u306b\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u304c<span>replaceFirst\/replaceAll<\/span>\u306e\u4fbf\u5229\u306a\u6240\u3067\u3059\u3002\u3067\u3082\u3001\u5bfe\u8c61\u3068\u3059\u308b\u6587\u5b57\u306e\u6570\u304c\u5897\u3048\u3066\u304f\u308b\u3068\u3001\u306a\u304b\u306a\u304b\u9762\u5012\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">String str = \"X Y\u3000 ZA B CZ X\u3000 Y\"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\/\u534a\u89d2\u7a7a\u767d\u3042\u308a\r\nString replaced = str.replaceFirst(\"^[\\\\hXYZ]+\", \"\").replaceFirst(\"[\\\\hXYZ]+$\", \"\");\r\nSystem.out.println(replaced); \/\/ \u2192 \"A B C\"<\/pre>\n<h4>\uff13-\uff11-\uff11\uff0e\u3010\u53c2\u8003\u3011<span>Java<\/span>\u306e\u6b63\u898f\u8868\u73fe\u306e\u5b9a\u7fa9\u6e08\u307f\u6587\u5b57\u30af\u30e9\u30b9<\/h4>\n<p>\u5148\u7a0b\u306e\u4f8b\u3067\u306f\u3001\u7a7a\u767d\u3092\u6307\u5b9a\u3059\u308b\u306e\u306b\u6587\u5b57\u30af\u30e9\u30b9<span> \\h <\/span>\u3092\u4f7f\u3044\u307e\u3057\u305f\u3002\u540c\u3058\u3088\u3046\u306a\u3082\u306e\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u7c21\u5358\u306b\u7d39\u4ecb\u3057\u307e\u3059\u3002\u8a73\u3057\u304f\u306f<span>Pattern<\/span>\u306e<span>Javadoc<\/span>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<blockquote>\n<p>Pattern (Java SE 11 &amp; JDK 11)<\/p>\n<p><a href=\"https:\/\/docs.oracle.com\/javase\/jp\/11\/docs\/api\/java.base\/java\/util\/regex\/Pattern.html\">https:\/\/docs.oracle.com\/javase\/jp\/11\/docs\/api\/java.base\/java\/util\/regex\/Pattern.html<\/a><\/p>\n<\/blockquote>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\u6587\u5b57\u30af\u30e9\u30b9<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u8aac\u660e<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">.<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u4efb\u610f\u306e\u6587\u5b57<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\u884c\u672b\u8a18\u53f7\u3068\u30de\u30c3\u30c1\u3059\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\d<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u6570\u5b57<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">0\uff5e9\u307e\u3067\u306e\u6570\u5b57\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\D<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u6570\u5b57\u4ee5\u5916<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\\d\u3092\u5426\u5b9a\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\h<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u6c34\u5e73\u65b9\u5411\u306e\u7a7a\u767d\u6587\u5b57<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\u30bf\u30d6\u3084\u6539\u884c\u306a\u3069\u3002\u5168\u89d2\u7a7a\u767d\u3082\u3053\u308c\u306b\u542b\u307e\u308c\u307e\u3059(\uff01)<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\H<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u6c34\u5e73\u65b9\u5411\u306e\u7a7a\u767d\u6587\u5b57\u4ee5\u5916<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\\h\u3092\u5426\u5b9a\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\s<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u7a7a\u767d\u6587\u5b57<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\u7a7a\u767d\u3001\u6539\u884c\u3001\u30bf\u30d6\u306a\u3069\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\S<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u7a7a\u767d\u6587\u5b57\u4ee5\u5916<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\\s\u3092\u5426\u5b9a\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\w<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u5358\u8a9e\u6587\u5b57<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\u5927\u5c0f\u306e\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u3068\u6570\u5b57\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.8085%; border-color: #000000;\">\\W<\/td>\n<td style=\"width: 24.4225%; border-color: #000000;\">\u5358\u8a9e\u6587\u5b57\u4ee5\u5916<\/td>\n<td style=\"width: 59.7689%; border-color: #000000;\">\\w\u3092\u5426\u5b9a\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span id=\"i\">\uff13-\uff12\uff0e\u6587\u5b57\u3067\u30eb\u30fc\u30d7\u3057\u3066\u5224\u65ad\u3059\u308b<\/span><\/h3>\n<p>String\u304c\u6301\u3064\u6587\u5b57\u3067\u30eb\u30fc\u30d7\u3092\u3057\u3066\u3001\u524a\u9664\u3057\u305f\u3044\u6587\u5b57\u304b\u3092\u5224\u65ad\u3059\u308b\u51e6\u7406\u3092\u4f5c\u308b\u306e\u3082\u3001\u5730\u5473\u306a\u304c\u3089\u78ba\u5b9f\u3067\u3059\u3002\u524a\u9664\u3057\u305f\u3044\u6587\u5b57\u306e\u5224\u65ad\u3092\u81ea\u5206\u3067\u3067\u304d\u308b\u306e\u3067\u3001\u67d4\u8edf\u306b\u3082\u4f5c\u308c\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u305d\u3093\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u6301\u3064\u30af\u30e9\u30b9\u3092\u7d20\u76f4\u306b\u4f5c\u308b\u306a\u3089\u3001\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002\u6587\u5b57\u524a\u9664\u306e\u5224\u65ad\u30ed\u30b8\u30c3\u30af\u306f<span>Character.isWhitespace<\/span>\u3092\u305d\u306e\u307e\u307e\u4f7f\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u306a\u3089\u3001\u4eca\u4f7f\u308f\u308c\u3066\u3044\u308b\u3069\u3093\u306a<span>Java<\/span>\u306e\u74b0\u5883\u3067\u3082\u52d5\u304f\u3067\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">class Stripper {\r\n\tstatic String strip(String str) {\r\n\t\treturn stripTrailing(stripLeading(str));\r\n\t}\r\n\r\n\tstatic String stripLeading(String str) {\r\n\t\tif (str == null || str.isEmpty()) {\r\n\t\t\treturn str;\r\n\t\t}\r\n\r\n\t\tchar[] chars = str.toCharArray();\r\n\t\tint firstIndex = 0;\r\n\r\n\t\t\/\/ \u6587\u5b57\u5217\u306e\u5148\u982d\u304b\u3089\u524a\u9664\u5bfe\u8c61\u3067\u306a\u3044\u6587\u5b57\u3092\u63a2\u3057\u3066\u2026\r\n\t\tfor (; firstIndex &lt; chars.length; firstIndex++) {\r\n\t\t\tif (!isTarget(chars[firstIndex])) {\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn str.substring(firstIndex); \/\/ substring\u3057\u3066\u623b\u3059\r\n\t}\r\n\r\n\tstatic String stripTrailing(String str) {\r\n\t\tif (str == null || str.isEmpty()) {\r\n\t\t\treturn str;\r\n\t\t}\r\n\r\n\t\tchar[] chars = str.toCharArray();\r\n\t\tint lastIndex = chars.length - 1;\r\n\r\n\t\t\/\/ \u6587\u5b57\u5217\u306e\u6700\u5f8c\u304b\u3089\u524a\u9664\u5bfe\u8c61\u3067\u306a\u3044\u6587\u5b57\u3092\u63a2\u3057\u3066\u2026\r\n\t\tfor (; lastIndex &gt;= 0; lastIndex--) {\r\n\t\t\tif (!isTarget(chars[lastIndex])) {\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn lastIndex &gt;= 0 ? str.substring(0, lastIndex + 1) : str; \/\/ substring\u3057\u3066\u623b\u3059\r\n\t}\r\n\r\n\tprivate static boolean isTarget(char c) {\r\n\t\treturn Character.isWhitespace(c);\r\n\t}\r\n}<\/pre>\n<pre class=\"prettyprint lang:default decode:true\">String str = \" \u3000 A B C \u3000 \"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\/\u534a\u89d2\u7a7a\u767d\u3042\u308a\r\nString stripped1 = Stripper.strip(str);\r\nString stripped2 = Stripper.stripLeading(str);\r\nString stripped3 = Stripper.stripTrailing(str);\r\nSystem.out.println(stripped1); \/\/ \u2192 \"A B C\"\u3001\u5168\u89d2\u7a7a\u767d\u3082\u524a\u9664\u3055\u308c\u305f!!\r\nSystem.out.println(stripped2); \/\/ \u2192 \"A B C \u3000 \"\u3001\u6587\u5b57\u5217\u306e\u524d\u306e\u7a7a\u767d\u3060\u3051\u524a\u9664\u3055\u308c\u305f!!\r\nSystem.out.println(stripped3); \/\/ \u2192 \" \u3000 A B C\"\u3001\u6587\u5b57\u5217\u306e\u5f8c\u308d\u306e\u7a7a\u767d\u3060\u3051\u524a\u9664\u3055\u308c\u305f!!<\/pre>\n<p>\u306a\u304a\u3001<span>Character<\/span>\u306b\u306f<span>isWhitespace<\/span>\u306e\u4ed6\u306b\u3082\u3001\u8272\u3005\u306a\u6587\u5b57\u7a2e\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e<span>is<\/span>\uff5e\u7cfb\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3082\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h4>\uff13-\uff12-\uff11\uff0e\u3010\u767a\u5c55\u3011\u3082\u3046\u5c11\u3057\u6c4e\u7528\u7684\u306b\u4f5c\u3063\u3066\u307f\u308b<\/h4>\n<p>\u3055\u304d\u307b\u3069\u4f5c\u3063\u305f<span>Stripper<\/span>\u3092\u3082\u3046\u5c11\u3057\u6c4e\u7528\u7684\u306b\u3059\u308b\u3068\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30af\u30e9\u30b9\u3092\u52d5\u304b\u3059\u306b\u306f<span>Java 9<\/span>\u4ee5\u964d\u304c\u5fc5\u8981\u3067\u3059\u3002\u3067\u3082\u3001<span>String.codePoints<\/span>\u3084<span>Stream<\/span>\u3092\u4f7f\u3063\u3066\u3044\u308b\u7b87\u6240\u3092\u4f5c\u308a\u76f4\u305b\u3070\u3001<span>Java 1.5<\/span>\u4ee5\u964d\u3067\u3042\u308c\u3070\u52d5\u304f\u306f\u305a\u3067\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">import java.util.Arrays;\r\nimport java.util.Set;\r\nimport java.util.stream.Collectors;\r\n\r\nclass Stripper {\r\n\tprivate final boolean whitespace;\r\n\tprivate Set&lt;Integer&gt; targets;\r\n\r\n\t\/**\r\n\t * Stripper\u3092\u751f\u6210\u3059\u308b\u3002\u7a7a\u767d\u306e\u524a\u9664\u306e\u307f\u3068\u306a\u308b\u3002\r\n\t *\/\r\n\tStripper() {\r\n\t\tthis(new int[] {}, true);\r\n\t}\r\n\r\n\t\/**\r\n\t * Stripper\u3092\u751f\u6210\u3059\u308b\u3002\u5f15\u6570\u3067\u6307\u5b9a\u3057\u305f\u6587\u5b57\u306e\u307f\u524a\u9664\u3059\u308b\u3002\r\n\t *\r\n\t * @param targetStr \u524a\u9664\u5bfe\u8c61\u306e\u6587\u5b57\r\n\t *\/\r\n\tStripper(String targetStr) {\r\n\t\tthis(targetStr, false);\r\n\t}\r\n\r\n\t\/**\r\n\t * Stripper\u3092\u751f\u6210\u3059\u308b\u3002\u7a7a\u767d\u306e\u524a\u9664\u3068\u3001\u5f15\u6570\u3067\u6307\u5b9a\u3057\u305f\u6587\u5b57\u3092\u5408\u308f\u305b\u3066\u524a\u9664\u3059\u308b\u304b\u6307\u5b9a\u3067\u304d\u308b\u3002\r\n\t * @param targetStr \u524a\u9664\u5bfe\u8c61\u306e\u6587\u5b57\r\n\t * @param hitespace \u7a7a\u767d\u3092\u524a\u9664\u3059\u308b\u304b true:\u524a\u9664\u3059\u308b false:\u524a\u9664\u3057\u306a\u3044\r\n\t *\/\r\n\tStripper(String targetStr, boolean hitespace) {\r\n\t\tthis(targetStr.codePoints().toArray(), hitespace);\r\n\t}\r\n\r\n\t\/**\r\n\t * Stripper\u3092\u751f\u6210\u3059\u308b\u3002\u524a\u9664\u5bfe\u8c61\u306e\u6587\u5b57\u306f\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u3067\u6307\u5b9a\u3059\u308b\u3002\r\n\t *\r\n\t * @param target \u524a\u9664\u5bfe\u8c61\u306e\u6587\u5b57\u306e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\r\n\t *\/\r\n\tStripper(int[] target) {\r\n\t\tthis(target, false);\r\n\t}\r\n\r\n\t\/**\r\n\t * Stripper\u3092\u751f\u6210\u3059\u308b\u3002\u7a7a\u767d\u306e\u524a\u9664\u3068\u3001\u5f15\u6570\u3067\u6307\u5b9a\u3057\u305f\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u6587\u5b57\u3092\u5408\u308f\u305b\u3066\u524a\u9664\u3059\u308b\u304b\u6307\u5b9a\u3067\u304d\u308b\u3002\r\n\t * @param target \u524a\u9664\u5bfe\u8c61\u306e\u6587\u5b57\u306e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\r\n\t * @param hitespace \u7a7a\u767d\u3092\u524a\u9664\u3059\u308b\u304b true:\u524a\u9664\u3059\u308b false:\u524a\u9664\u3057\u306a\u3044\r\n\t *\/\r\n\tStripper(int[] target, boolean whitespace) {\r\n\t\ttargets = Arrays.stream(target).boxed().collect(Collectors.toSet());\r\n\t\tthis.whitespace = whitespace;\r\n\t}\r\n\r\n\tvoid add(String str) {\r\n\t\tstr.codePoints().forEach(targets::add);\r\n\t}\r\n\r\n\tvoid add(int c) {\r\n\t\ttargets.add(c);\r\n\t}\r\n\r\n\tvoid add(char c) {\r\n\t\ttargets.add((int) c);\r\n\t}\r\n\r\n\tString strip(String str) {\r\n\t\treturn stripTrailing(stripLeading(str));\r\n\t}\r\n\r\n\tString stripLeading(String str) {\r\n\t\tif (str == null || str.isEmpty()) {\r\n\t\t\treturn str;\r\n\t\t}\r\n\r\n\t\tint[] codepoints = str.codePoints().toArray();\r\n\t\tint firstIndex = 0;\r\n\r\n\t\tfor (; firstIndex &lt; codepoints.length; firstIndex++) {\r\n\t\t\tif (!isTarget(codepoints[firstIndex])) {\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn new String(codepoints, firstIndex, codepoints.length - firstIndex);\r\n\t}\r\n\r\n\tString stripTrailing(String str) {\r\n\t\tif (str == null || str.isEmpty()) {\r\n\t\t\treturn str;\r\n\t\t}\r\n\r\n\t\tint[] codepoints = str.codePoints().toArray();\r\n\t\tint lastIndex = codepoints.length - 1;\r\n\r\n\t\tfor (; lastIndex &gt;= 0; lastIndex--) {\r\n\t\t\tif (!isTarget(codepoints[lastIndex])) {\r\n\t\t\t\tbreak;\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\treturn new String(codepoints, 0, lastIndex + 1);\r\n\t}\r\n\r\n\tprivate boolean isTarget(int c) {\r\n\t\tboolean contains = false;\r\n\r\n\t\tif (whitespace) {\r\n\t\t\tcontains = Character.isWhitespace(c);\r\n\t\t}\r\n\r\n\t\treturn !contains &amp;&amp; !targets.isEmpty() ? targets.contains(c) : contains;\r\n\t}\r\n}<\/pre>\n<p>\u3053\u306e\u30af\u30e9\u30b9\u3068\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u4f7f\u3044\u307e\u3059\u3002\u524a\u9664\u5bfe\u8c61\u306b\u3067\u304d\u308b\u6587\u5b57\u306b\u3064\u3044\u3066\u306f<span>Unicode<\/span>\u306e\u30b5\u30ed\u30b2\u30fc\u30c8\u30da\u30a2\u3082\u8003\u616e\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u4f8b\u3048\u3070\u3044\u308f\u3086\u308b\u300c\u3064\u3061\u3088\u3057\u300d\u3084\u300c\u306f\u3057\u3054\u9ad8\u300d\u3082\u4f7f\u3048\u307e\u3059\u3002\u524a\u9664\u3059\u308b\u6587\u5b57\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u6307\u5b9a\u3059\u308b\u4ee5\u5916\u306b\u3082\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u3063\u305f\u5f8c\u306b\u3082<span>add<\/span>\u3067\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">String str = \"Z X\u3000Y A B C Y\u3000X Z\"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\/\u534a\u89d2\u7a7a\u767d\u3068\u4f59\u5206\u306a\u6587\u5b57\u3042\u308a\r\nString stripped1 = new Stripper(\"XYZ\", true).strip(str);\r\nString stripped2 = new Stripper(\"XYZ\", true).stripLeading(str);\r\nString stripped3 = new Stripper(\"XYZ\", true).stripTrailing(str);\r\nSystem.out.println(stripped1); \/\/ \u2192 \"A B C\"\u3001\u6307\u5b9a\u3057\u305f\u6587\u5b57\u3068\u7a7a\u767d\u304c\u524a\u9664\u3055\u308c\u305f!!\r\nSystem.out.println(stripped2); \/\/ \u2192 \"A B C Y\u3000X Z\"\u3001\u6587\u5b57\u5217\u306e\u524d\u304b\u3089\u3060\u3051\u524a\u9664\u3055\u308c\u305f!!\r\nSystem.out.println(stripped3); \/\/ \u2192 \"Z X\u3000Y A B C\"\u3001\u6587\u5b57\u5217\u306e\u5f8c\u308d\u304b\u3089\u3060\u3051\u524a\u9664\u3055\u308c\u305f!!<\/pre>\n<h2><span id=\"trim-2\">\uff14\uff0e\u3010\u4fbf\u5229\u3011\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u306e<span>trim<\/span>\u7684\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046<\/span><\/h2>\n<p>Java\u306b\u306f\u6587\u5b57\u30fb\u6587\u5b57\u5217\u3092\u6271\u3046\u305f\u3081\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u591a\u6570\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u4e2d\u3067\u3082\u6709\u540d\u306a\u3082\u306e\u3001\u4f8b\u3048\u3070<span>Apache Commons-Lang<\/span>\u3084<span>Guava<\/span>\u306b\u306f\u3001<span>trim<\/span>\u3092\u3059\u308b\u305f\u3081\u306e\u4fbf\u5229\u306a\u30af\u30e9\u30b9\u30fb\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002\u65e9\u901f\u3044\u304f\u3064\u304b\u3092\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span id=\"-Apache_Commons-LangStringUtils\">\uff14-\uff11\uff0eApache Commons-Lang\u306e<span>StringUtils<\/span>\u3092\u4f7f\u3046<\/span><\/h3>\n<p>Apache Commons-Lang\u3067<span>trim<\/span>\u7684\u306a\u64cd\u4f5c\u3092\u3059\u308b\u306a\u3089\u3001<span>StringUtils.strip<\/span>\u306a\u3069\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<blockquote>\n<p>StringUtils (Apache Commons Lang 3.9-SNAPSHOT API)<\/p>\n<p><a href=\"https:\/\/commons.apache.org\/proper\/commons-lang\/apidocs\/org\/apache\/commons\/lang3\/StringUtils.html\">https:\/\/commons.apache.org\/proper\/commons-lang\/apidocs\/org\/apache\/commons\/lang3\/StringUtils.html<\/a><\/p>\n<\/blockquote>\n<pre class=\"prettyprint lang:default decode:true\">String str = \" \u3000 A B C \u3000 \"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\/\u534a\u89d2\u7a7a\u767d\u3042\u308a\r\nString stripped = StringUtils.strip(str);\r\nSystem.out.println(stripped); \/\/ \u2192 \"A B C\"<\/pre>\n<p>strip\u306f\u3001\u5f15\u6570\u304c\u4e00\u3064\u306e\u3082\u306e\u3060\u3068<span>Character.isWhitespace<\/span>\u3092\u4f7f\u3044\u307e\u3059\u3002\u5f15\u6570\u304c\u4e8c\u3064<span>strip<\/span>\u306f\u3001\u524a\u9664\u3057\u305f\u3044\u6587\u5b57\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059<span>(<\/span>\u30b5\u30ed\u30b2\u30fc\u30c8\u30da\u30a2\u306b\u306f\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u3088\u3046\u3067\u3059<span>)<\/span>\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">String str = \"XYZA B CZYX\"; \/\/ \u2190\u5148\u982d\u30fb\u672b\u5c3e\u306bXYZ\u304c\u3064\u3044\u3066\u3044\u308b\r\nString stripped = StringUtils.strip(str, \"XYZ\"); \/\/ XYZ\u3092strip\u3055\u305b\u3066\u307f\u308b\u3068\u2026\r\nSystem.out.println(stripped); \/\/ \u2192 \"A B C\"<\/pre>\n<p>\u3053\u308c\u3089\u306e\u4ed6\u306b\u3082\u3001\u982d\u3060\u3051\u3001\u7d42\u308f\u308a\u3060\u3051\u3001<span>null<\/span>\u3060\u3063\u305f\u3089<span>&#8220;&#8221;<\/span>\u306b\u3059\u308b\u3001<span>&#8220;&#8221;<\/span>\u3060\u3063\u305f\u3089<span>null<\/span>\u306b\u3059\u308b\u306a\u3069\u69d8\u3005\u306a\u7a2e\u985e\u306e<span>strip<\/span>\u304c\u3042\u308a\u307e\u3059\u3002\u305c\u3072<span>API<\/span>\u3092\u898b\u3066\u3001\u4f7f\u3048\u305d\u3046\u306a\u3082\u306e\u3092\u63a2\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span id=\"-GuavaCharMatcher\">\uff14-\uff12\uff0eGuava\u306e<span>CharMatcher<\/span>\u3092\u4f7f\u3046<\/span><\/h3>\n<p>Google\u306e<span>Guava<\/span>\u3067<span>trim<\/span>\u7684\u306a\u64cd\u4f5c\u3092\u3059\u308b\u306a\u3089\u3001<span>CharMatcher<\/span>\u3068\u95a2\u9023\u3059\u308b<span>trim<\/span>\uff5e\u3068\u3044\u3046\u540d\u524d\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<blockquote>\n<p>CharMatcher (Guava: Google Core Libraries for Java HEAD-jre-SNAPSHOT API)<\/p>\n<p><a href=\"https:\/\/google.github.io\/guava\/releases\/snapshot-jre\/api\/docs\/com\/google\/common\/base\/CharMatcher.html\">https:\/\/google.github.io\/guava\/releases\/snapshot-jre\/api\/docs\/com\/google\/common\/base\/CharMatcher.html<\/a><\/p>\n<\/blockquote>\n<pre class=\"prettyprint lang:default decode:true\">String str = \" \u3000 A B C \u3000 \"; \/\/ ABC\u306e\u524d\u5f8c\u306b\u5168\u89d2\/\u534a\u89d2\u7a7a\u767d\u3042\u308a\r\nString trimmed = CharMatcher.whitespace().trimFrom(str);\r\nSystem.out.println(trimmed); \/\/ \u2192 \"A B C\"<\/pre>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u6587\u5b57\u5217\u306e\u982d\u3068\u7d42\u308f\u308a\u304b\u3089\u524a\u9664\u3059\u308b<span>trimFrom<\/span>\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002\u4ed6\u306b\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u306f\u3001<span>trimLeadingFrom<\/span>\u306f\u6700\u521d\u304b\u3089\u524a\u9664\u3057\u3001<span>trimTrailingFrom<\/span>\u306f\u5f8c\u308d\u304b\u3089\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n<p>\u7279\u5fb4\u7684\u306a\u306e\u306f\u3001\u5bfe\u51e6\u3068\u3059\u308b\u6587\u5b57\u306e\u6307\u5b9a\u306e\u4ed5\u65b9\u3067\u3059\u3002<span>CharMatcher.whitespace<\/span>\u3060\u3068\u7a7a\u767d\u7528\u306e<span>CharMatcher<\/span>\u3092\u53d6\u5f97\u3057\u3001<span>CharMatcher.ascii<\/span>\u306a\u3089<span>ASCII<\/span>\u306e\u7bc4\u56f2\u306b\u3042\u308b\u6587\u5b57\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2><span id=\"trimstrip\">\uff15\uff0e\u3010\u53c2\u8003\u3011<span>trim\/strip<\/span>\u3067\u77e5\u3063\u3066\u304a\u304f\u3068\u5f79\u7acb\u3064\u77e5\u8b58<\/span><\/h2>\n<h3><span id=\"-Unicode\">\uff15-\uff11\uff0e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u306f<span>Unicode<\/span>\u3067\u306e\u6587\u5b57\u306e\u9023\u756a<\/span><\/h3>\n<p>Java\u3067\u306f<span>Unicode<\/span>\u3068\u3044\u3046\u65b9\u5f0f\u3067\u6587\u5b57\u3092\u6271\u3044\u307e\u3059\u3002\u305d\u306e<span>Unicode<\/span>\u3067\u3001\u4e00\u3064\u306e\u6587\u5b57\u3054\u3068\u306b<span>0<\/span>\u304b\u3089\u9806\u756a\u306b\u5272\u308a\u632f\u3089\u308c\u305f\u756a\u53f7\u304c\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<span>UTF-8<\/span>\u3084<span>UTF-16<\/span>\u306a\u3069\u306e\u3084\u308a\u65b9<span>(<\/span>\u6587\u5b57\u7b26\u53f7\u5316\u65b9\u5f0f<span>)<\/span>\u3067\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3055\u308c\u305f\u7d50\u679c\u3067\u3042\u308b\u30d0\u30a4\u30c8\u5217\u306e\u5024\u3068\u3001\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306f\u9055\u3046\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>Java\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u4e2d\u3067\u6587\u5b57\u3092\u6307\u5b9a\u3059\u308b\u6642\u3067\u3082\u3001\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u3044\u3046\u4e2d\u7acb\u7684\u306a\u6570\u5b57\u3092\u4f7f\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u3064\u306e\u6587\u5b57\u306e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306f\u3069\u3053\u3067\u3082\u5fc5\u305a\u540c\u3058\u306a\u306e\u3067\u3001\u3069\u3046\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3055\u308c\u308b\u304b\u306b\u306f\u95a2\u4fc2\u306a\u304f\u6587\u5b57\u3092\u793a\u305b\u308b\u304b\u3089\u3067\u3059\u3002<span>Java<\/span>\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u4e0a\u3067\u306f\u3001\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306f<span>32<\/span>\u30d3\u30c3\u30c8\u306e<span>int<\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u534a\u89d2\u7a7a\u767d\u306f<span>U+0020<\/span>\u3068\u3044\u3046\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u6570\u5b57\u90e8\u5206\u306f<span>16<\/span>\u9032\u6570\u3067\u3001\u3053\u308c\u3092\u5341\u9032\u6570\u306b\u3059\u308b\u3068<span>32<\/span>\u3067\u3059\u3002<span>UTF-8<\/span>\u3067\u306f<span>0x20<\/span>\u3068\u306a\u308a\u3001<span>UTF-16<\/span>\u3067\u306f<span>0x0020<\/span>\u3067\u3059\u3002<span>U+007F<\/span>\u307e\u3067\u306f\u3001\u3044\u308f\u3086\u308b<span>ASCII<\/span>\u30b3\u30fc\u30c9\u3068\u540c\u3058\u6570\u5b57\u3068\u6587\u5b57\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5168\u89d2\u7a7a\u767d\u306e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306f<span>U+3000<\/span>\u3067\u3001<span>UTF-8<\/span>\u3067\u306f<span>0xE3 0x80 0x80<\/span>\u3068\u306a\u308a\u3001<span>UTF-16<\/span>\u3067\u306f<span>0x3000<\/span>\u3067\u3059\u3002\u3044\u308f\u3086\u308b\u3064\u3061\u3088\u3057<span>(<\/span>?<span>)<\/span>\u306e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306f<span>U+20BB7<\/span>\u3067\u3001<span>UTF-8<\/span>\u3067\u306f<span>0xF0 0xA0 0xAE 0xB7<\/span>\u3068\u306a\u308a\u3001<span>UTF-16BE<\/span>\u3067\u306f<span>0xD842 0xDFB7<\/span>\u3067\u3059\u3002<\/p>\n<h3><span id=\"-CharacterisWhitespace\">\uff15-\uff12\uff0eCharacter.isWhitespace\u304c\u7a7a\u767d\u6271\u3044\u3059\u308b\u6587\u5b57<\/span><\/h3>\n<p>\u7a7a\u767d\u3092\u5224\u65ad\u3059\u308b<span>Character.isWhitespace<\/span>\u306f\u3001\u5b9f\u306f<span>Java<\/span>\u306b\u305a\u3063\u3068\u6614\u304b\u3089\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u306a\u3093\u3068\u3001<span>Java 1.1(11<\/span>\u3067\u306f\u306a\u3044<span>!!)<\/span>\u306e\u6642\u4ee3\u304b\u3089\u3067\u3059\u3002<span>\u203b<\/span>\u30b5\u30ed\u30b2\u30fc\u30c8\u30da\u30a2\u5bfe\u5fdc\u3057\u305f<span>isWhitespace(int)<\/span>\u306f\u3001<span>Java 1.5<\/span>\u304b\u3089\u3067\u3059<\/p>\n<p>Java 11\u306e<span>Javadoc<\/span>\u3092\u3072\u3082\u89e3\u304f\u3068\u3001<span>Character.isWhitespace<\/span>\u306f\u3001\u4ee5\u4e0b\u306e\u6587\u5b57\u3092\u7a7a\u767d\u6271\u3044\u3059\u308b\u3068\u3042\u308a\u307e\u3059\u3002<\/p>\n<blockquote>\n<p>\u6307\u5b9a\u3055\u308c\u305f\u6587\u5b57<span>(Unicode<\/span>\u30b3\u30fc\u30c9\u30fb\u30dd\u30a4\u30f3\u30c8<span>)<\/span>\u304c<span>Java<\/span>\u306e\u57fa\u6e96\u306b\u5f93\u3063\u305f\u7a7a\u767d\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3057\u307e\u3059\u3002 \u6b21\u306e\u57fa\u6e96\u306e\u3069\u308c\u304b\u3092\u6e80\u305f\u3059\u5834\u5408\u306b\u3060\u3051\u3001<span>Java<\/span>\u306e\u7a7a\u767d\u6587\u5b57\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>Unicode\u306e\u7a7a\u767d\u6587\u5b57<span>(SPACE_SEPARATOR<\/span>\u3001<span>LINE_SEPARATOR<\/span>\u3001\u307e\u305f\u306f<span>PARAGRAPH_SEPARATOR)<\/span>\u3067\u3042\u308b\u304c\u3001\u6539\u884c\u306a\u3057\u306e\u7a7a\u767d<span>(&#8216;\\u00A0&#8217;<\/span>\u3001<span>&#8216;\\u2007&#8217;<\/span>\u3001<span>&#8216;\\u202F&#8217;)<\/span>\u3067\u306f\u306a\u3044\u3002<\/p>\n<p>&#8216;\\t&#8217; (U+0009\u6c34\u5e73\u30bf\u30d6<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\n&#8217; (U+000A\u6539\u884c<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\u000B&#8217; (U+000B\u5782\u76f4\u30bf\u30d6<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\f&#8217; (U+000C\u30d5\u30a9\u30fc\u30e0\u30fb\u30d5\u30a3\u30fc\u30c9<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\r&#8217; (U+000D\u5fa9\u5e30<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\u001C&#8217; (U+001C\u30d5\u30a1\u30a4\u30eb\u533a\u5207\u308a\u6587\u5b57<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\u001D&#8217; (U+001D\u30b0\u30eb\u30fc\u30d7\u533a\u5207\u308a\u6587\u5b57<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\u001E&#8217; (U+001E\u30ec\u30b3\u30fc\u30c9\u533a\u5207\u308a\u6587\u5b57<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<p>&#8216;\\u001F&#8217; (U+001F\u5358\u4f4d\u533a\u5207\u308a\u6587\u5b57<span>)<\/span>\u3067\u3042\u308b\u3002<\/p>\n<\/blockquote>\n<p>\u3055\u3066\u3001\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u66f8\u3044\u3066\u3042\u308b\u3082\u306e\u306f\u308f\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u3002\u3067\u3082\u3001<span>SPACE_SEPARATOR<\/span>\u3001<span>LINE_SEPARATOR<\/span>\u3001<span>PARAGRAPH_SEPARATOR<\/span>\u306a\u308b\u8a18\u8ff0\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001<span>Unicode<\/span>\u3067\u6c7a\u3081\u3089\u308c\u3066\u3044\u308b\u3001\u540c\u3058\u3088\u3046\u306a\u7a2e\u985e\u306e\u6587\u5b57\u3092\u307e\u3068\u3081\u305f\u300c\u4e00\u822c\u30ab\u30c6\u30b4\u30ea(General Category)\u300d\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u3069\u3093\u306a\u6587\u5b57\u304c\u542b\u307e\u308c\u308b\u304b\u306f\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u30b5\u30a4\u30c8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7a7a\u767d\u306e\u30ab\u30c6\u30b4\u30ea\u30fc\u3060\u3051\u3067<span>17<\/span>\u500b\u3082\u6587\u5b57\u304c\u3042\u308b\u306e\u3067\u3059\u3002\u4e16\u306e\u4e2d\u306f\u5e83\u3044\u3067\u3059\u306d<span>\u2026<\/span>\u3002<\/p>\n<blockquote>\n<p>Unicode Characters in the &#8216;Separator, Space&#8217; Category<\/p>\n<p><a href=\"http:\/\/www.fileformat.info\/info\/unicode\/category\/Zs\/list.htm\">http:\/\/www.fileformat.info\/info\/unicode\/category\/Zs\/list.htm<\/a><\/p>\n<p>\u2192 SPACE_SEPARATOR\u306b\u5bfe\u5fdc\u3059\u308b\u3082\u306e<span>(<\/span>\u30ab\u30c6\u30b4\u30ea\u30fc<span>Zs)<\/span>\u3002\u5168\u89d2\u7a7a\u767d\u306f\u3053\u3053\u306b\u542b\u307e\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001<span>U+00A0<\/span>\u3001<span>U+2007<\/span>\u3001<span>U+202F<\/span>\u306f<span>Character.isWhitespace<\/span>\u3067\u306f\u7a7a\u767d\u6271\u3044\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<\/blockquote>\n<blockquote>\n<p>Unicode Characters in the &#8216;Separator, Line&#8217; Category<\/p>\n<p><a href=\"https:\/\/www.fileformat.info\/info\/unicode\/category\/Zl\/list.htm\">https:\/\/www.fileformat.info\/info\/unicode\/category\/Zl\/list.htm<\/a><\/p>\n<p>\u2192 LINE_SEPARATOR\u306b\u5bfe\u5fdc\u3059\u308b\u3082\u306e<span>(<\/span>\u30ab\u30c6\u30b4\u30ea\u30fc<span>Zl)<\/span>\u3002<\/p>\n<\/blockquote>\n<blockquote>\n<p>Unicode Characters in the &#8216;Separator, Paragraph&#8217; Category<\/p>\n<p><a href=\"https:\/\/www.fileformat.info\/info\/unicode\/category\/Zp\/list.htm\">https:\/\/www.fileformat.info\/info\/unicode\/category\/Zp\/list.htm<\/a><\/p>\n<p>\u2192 PARAGRAPH_SEPARATOR\u306b\u5bfe\u5fdc\u3059\u308b\u3082\u306e<span>(<\/span>\u30ab\u30c6\u30b4\u30ea\u30fc<span>Zp)<\/span>\u3002<\/p>\n<\/blockquote>\n<h2><span id=\"i-2\">\uff16\uff0e\u307e\u3068\u3081<\/span><\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<span>String.trim<\/span>\u306e\u4f7f\u3044\u65b9\u304b\u3089\u521d\u3081\u3066\u3001<span>Java 11<\/span>\u3067\u8ffd\u52a0\u3055\u308c\u305f<span>strip<\/span>\u306b\u89e6\u308c\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u3001\u81ea\u5206\u304c\u6b32\u3057\u3044\u3068\u601d\u3046<span>trim<\/span>\u3092\u81ea\u5206\u3067\u4f5c\u3063\u305f\u308a\u3001\u95a2\u9023\u3059\u308b\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u307e\u3067\u3092\u7c21\u5358\u306b\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u7d39\u4ecb\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3042\u304f\u307e\u3067\u4e00\u4f8b\u306a\u306e\u3067\u3001\u7686\u3055\u3093\u306e\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u53c2\u8003\u306b\u3057\u305f\u308a\u3001\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>Java\u306e\u6a19\u6e96<span>API<\/span>\u306b\u7121\u3044\u6a5f\u80fd\u306f\u3069\u3093\u3069\u3093\u81ea\u5206\u3067\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002\u6a19\u6e96<span>API<\/span>\u3068\u8a00\u3048\u3069\u3082\u3001\u7686\u3055\u3093\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u6a19\u6e96<span>API<\/span>\u306b\u3042\u308b\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u3066\u4f5c\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u308c\u306b\u3001\u6a19\u6e96<span>API<\/span>\u304c\u3069\u3046\u3044\u3046\u98a8\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u304b\u8abf\u3079\u3066\u77e5\u308b\u3053\u3068\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u3068\u3057\u3066\u306e\u30b9\u30ad\u30eb\u30a2\u30c3\u30d7\u306b\u3082\u3064\u306a\u304c\u308b\u3001\u5927\u4e8b\u306a\u3053\u3068\u3067\u3059\u3088\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>String.trim\u306f\u3001\u6587\u5b57\u5217\u306e\u524d\u5f8c\u306b\u3042\u308b\u7a7a\u767d\u6587\u5b57\u3092\u524a\u9664\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u5b9f\u969b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3082\u3001\u304b\u306a\u308a\u983b\u7e41\u306b\u4f7f\u3046\u3082\u306e\u3067\u3059\u3002 \u305f\u3060\u3001\u3053\u3053\u3067\u300c\u7a7a\u767d\u300d\u3068\u8a00\u3063\u305f\u6642\u306b\u3001\u30a2\u30b8\u30a2\u306e\u7247\u9685\u306b\u751f\u304d\u308b\u65e5\u672c\u4eba\u306e\u7acb\u5834\u306e\u5f31\u3055\u3092\u611f\u3058\u308b\u6642\u304c\u3042\u308a\u307e\u3059\u3002 [&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\/1417"}],"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=1417"}],"version-history":[{"count":9,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/1417\/revisions"}],"predecessor-version":[{"id":5778,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/1417\/revisions\/5778"}],"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=1417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/categories?post=1417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}