{"id":4023,"date":"2023-06-27T12:00:30","date_gmt":"2023-06-27T03:00:30","guid":{"rendered":"https:\/\/www.bold.ne.jp\/engineer-club\/?p=4023"},"modified":"2025-11-19T11:11:59","modified_gmt":"2025-11-19T02:11:59","slug":"kotlin-data-class","status":"publish","type":"post","link":"https:\/\/www.bold.ne.jp\/engineer-club\/kotlin-data-class","title":{"rendered":"kotlin\u306edataclass\uff08\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\uff09\u3068\u306f\uff1fdataclass\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"<p>Kotlin\u306e<span>data class<\/span>\u3068\u306f\u3001\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u5f79\u5272\u306e\u30af\u30e9\u30b9\u306b\u4f7f\u3046\u8a18\u6cd5\u306e\u3053\u3068\u3067\u3059\u3002<br \/>\n\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u30fb\u6bd4\u8f03\u306e\u305f\u3081\u306e\u95a2\u6570\u3092\u81ea\u52d5\u3067\u751f\u6210\u3059\u308b\u3001\u30af\u30e9\u30b9\u3092\u767a\u5c55\u3055\u305b\u305f\u7269\u3067\u3059\u3002<\/p>\n<p>\u305d\u3093\u306a<span>data class<\/span>\u306b\u3064\u3044\u3066\u672c\u8a18\u4e8b\u3067\u306f\u89e3\u8aac\u3057\u3066\u3044\u304f\u306e\u3067\u4e00\u7dd2\u306b\u5b66\u3093\u3067\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#kotlindata_class\">\uff11\uff0ekotlin\u306edata class\u3068\u306f<\/a><\/li><li><a href=\"#Kotlindata_class\">\uff12\uff0eKotlin\u306b\u304a\u3051\u308bdata class\u306e\u30b5\u30f3\u30d7\u30eb<\/a><ul><li><a href=\"#-data_class\">\uff12-\uff11\uff0edata class\u306e\u5ba3\u8a00\u65b9\u6cd5<\/a><\/li><li><a href=\"#-copy\">\uff12-\uff12\uff0ecopy\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9<\/a><\/li><li><a href=\"#-equals\">\uff12-\uff13\uff0eequals\u30e1\u30bd\u30c3\u30c9\u306e\u6ce8\u610f\u70b9<\/a><\/li><li><a href=\"#-interface\">\uff12-\uff14\uff0einterface\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a><\/li><li><a href=\"#i\">\uff12-\uff15\uff0e\u5206\u89e3\u5ba3\u8a00<\/a><\/li><\/ul><\/li><li><a href=\"#kotlin\">\uff13\uff0ekotlin \u305d\u306e\u4ed6\u6a19\u6e96\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9<\/a><ul><li><a href=\"#-Pair\">\uff13-\uff11\uff0ePair<\/a><\/li><li><a href=\"#-Tripl\">\uff13-\uff12\uff0eTripl<\/a><\/li><\/ul><\/li><li><a href=\"#i-2\">\uff14\uff0e\u307e\u3068\u3081<\/a><\/li><\/ul><\/div>\n<h2><span id=\"kotlindata_class\">\uff11\uff0ekotlin\u306edata class\u3068\u306f<\/span><\/h2>\n<p>Kotlin\u3067\u306f\u3001\u30c7\u30fc\u30bf\u3092\u6271\u3046\u305f\u3081\u306e\u4fbf\u5229\u306a\u6a5f\u80fd\u3068\u3057\u3066\u3001<span>data class<\/span>\uff08\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\uff09\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><span id=\"Kotlindata_class\">\uff12\uff0eKotlin\u306b\u304a\u3051\u308b<span>data class<\/span>\u306e\u30b5\u30f3\u30d7\u30eb<\/span><\/h2>\n<p>data class\u3092\u4f7f\u3046\u306b\u306f\u3001\u30af\u30e9\u30b9\u540d\u306e\u524d\u306b<span>data<\/span>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4ed8\u3051\u307e\u3059\u3002\u307e\u305f\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u5c11\u306a\u304f\u3068\u3082<span>1<\/span>\u3064\u4ee5\u4e0a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5ba3\u8a00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b<span>Person<\/span>\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">data class Person(val name: String, var age: Int)\r\n\r\n\r\nval taro = Person(\"Taro\", 20)\r\nval jiro = Person(\"Jiro\", 25)\r\n\r\n\/\/ equals()\u3084toString()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u4f8b\r\nprintln(taro == jiro) \/\/ false\r\nprintln(taro.toString()) \/\/ Person(name=Taro, age=20)\r\n\r\n\/\/ \u5206\u5272\u4ee3\u5165\r\nval (name, age) = taro \r\nprintln(name) \/\/ Taro\r\nprintln(age) \/\/ 20\r\n\r\n\/\/ \u30b3\u30d4\u30fc\u3092\u4f5c\u6210\r\nval jugemu = taro.copy(name = \"Jugemu\") \r\nprintln(jugemu) \/\/ Person(name=Jugemu, age=20)\r\n<\/pre>\n<h3><span id=\"-data_class\">\uff12-\uff11\uff0edata class\u306e\u5ba3\u8a00\u65b9\u6cd5<\/span><\/h3>\n<p>data class\u3092\u5ba3\u8a00\u3059\u308b\u969b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30eb\u30fc\u30eb\u306b\u5f93\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u00a0\u30af\u30e9\u30b9\u540d\u306e\u524d\u306b<span>data<\/span>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4ed8\u3051\u308b<\/li>\n<li>\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u5c11\u306a\u304f\u3068\u3082<span>1<\/span>\u3064\u4ee5\u4e0a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5ba3\u8a00\u3059\u308b<\/li>\n<li>\u30d7\u30ed\u30d1\u30c6\u30a3\u306f<span>val<\/span>\uff08\u8aad\u307f\u53d6\u308a\u5c02\u7528\uff09\u304b<span>var<\/span>\uff08\u8aad\u307f\u66f8\u304d\u53ef\u80fd\uff09\u3067\u3042\u308b\u3053\u3068<\/li>\n<li>\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u30ab\u30b9\u30bf\u30e0\u30a2\u30af\u30bb\u30b5\u30fc\u3092\u6301\u305f\u306a\u3044\u3053\u3068<\/li>\n<li>\u30d7\u30ed\u30d1\u30c6\u30a3\u306f<span>open<\/span>\u3001<span>override<\/span>\u3001<span>abstract<\/span>\u3001<span>lateinit<\/span>\u306a\u3069\u306e\u4fee\u98fe\u5b50\u3092\u6301\u305f\u306a\u3044\u3053\u3068<\/li>\n<\/ul>\n<h3><span id=\"-copy\">\uff12-\uff12\uff0ecopy\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9<\/span><\/h3>\n<pre class=\"prettyprint lang:default decode:true\">data class Person(val name: String, val age: Int, val address: String)\r\n\r\nval taro = Person(\"Taro\", 20, \"Tokyo\")\r\nval jiro = taro.copy(name = \"Jiro\") \/\/ Taro\u3068\u540c\u3058\u5e74\u9f62\u3068\u4f4f\u6240\u3067\u3001\u540d\u524d\u3060\u3051Jiro\u306b\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u308b\r\nprintln(taro) \/\/ Person(name=Taro, age=20, address=Tokyo)\r\nprintln(jiro) \/\/ Person(name=Jiro, age=20, address=Tokyo)\r\n<\/pre>\n<p>copy\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u5ba3\u8a00\u3055\u308c\u305f\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u5bfe\u5fdc\u3059\u308b\u5f15\u6570\u3092\u6301\u3061\u307e\u3059\u3002\u5f15\u6570\u3092\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u540c\u3058\u5024\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002\u5f15\u6570\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u5024\u3067\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u4e0a\u66f8\u304d\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>copy\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4e0d\u5909\u306b\u6271\u3044\u305f\u3044\u5834\u5408\u3084\u3001\u4e00\u90e8\u306e\u5024\u3060\u3051\u5909\u3048\u305f\u3044\u5834\u5408\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<h3><span id=\"-equals\">\uff12-\uff13\uff0eequals\u30e1\u30bd\u30c3\u30c9\u306e\u6ce8\u610f\u70b9<\/span><\/h3>\n<p>equals\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540c\u58eb\u306e\u7b49\u4fa1\u6027\u3092\u5224\u5b9a\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<span>Kotlin<\/span>\u3067\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3057\u3066<span>==<\/span>\u3084<span>!=<\/span>\u3092\u9069\u7528\u3059\u308b\u3068\u3001\u5185\u90e8\u7684\u306b<span>equals<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u306b\u5909\u63db\u3055\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u914d\u5217\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u5185\u90e8\u306e\u8981\u7d20\u304c\u4e00\u81f4\u3057\u3066\u3044\u3066\u3082\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u898b\u308b\u3068\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001<span>false<\/span>\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\u3002\u305d\u306e\u305f\u3081<span>IDE<\/span>\u3067\u306e<span>equals<\/span>\u30e1\u30bd\u30c3\u30c9\u306e\u751f\u6210\u51e6\u7406\u7b49\u3092\u4f7f\u7528\u3057\u3066\u3001\u6b63\u3057\u3044<span>equals<\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u969b<span>hashCode<\/span>\u30e1\u30bd\u30c3\u30c9\u3082\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span id=\"-interface\">\uff12-\uff14\uff0einterface\u306e\u5b9f\u88c5\u65b9\u6cd5<\/span><\/h3>\n<p>\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u3084\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3066\u3001\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">interface Printable {\r\n    fun print()\r\n}\r\n\/\/ \u3053\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3059\u308b\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\r\ndata class User(val name: String, val age: Int) : Printable {\r\n    override fun print() {\r\n        println(\"User(name=$name, age=$age)\")\r\n    }\r\n}\r\n<\/pre>\n<h3><span id=\"i\">\uff12-\uff15\uff0e\u5206\u89e3\u5ba3\u8a00<\/span><\/h3>\n<p>\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u3001\u5206\u89e3\u5ba3\u8a00\u3068\u3044\u3046\u6a5f\u80fd\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u5206\u89e3\u5ba3\u8a00\u3068\u306f\u3001\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u5ba3\u8a00\u3055\u308c\u305f\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u5206\u89e3\u3057\u3066\u3001\u5225\u3005\u306e\u5909\u6570\u306b\u4ee3\u5165\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u5206\u89e3\u5ba3\u8a00\u3092\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">val user = User(\"Taro\", 20)\r\nval (name, age) = user\r\nprintln(name) \/\/ Taro\r\nprintln(age) \/\/ 20\r\n<\/pre>\n<h2><span id=\"kotlin\">\uff13\uff0ekotlin \u305d\u306e\u4ed6\u6a19\u6e96\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9<\/span><\/h2>\n<p>Kotlin\u3067\u306f\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3044\u304f\u3064\u304b\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u3001\u4e00\u822c\u7684\u306a\u7528\u9014\u306b\u4fbf\u5229\u306a\u3082\u306e\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001<span>Pair<\/span>\u3068<span>Triple<\/span>\u3068\u3044\u3046<span>2<\/span>\u3064\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3><span id=\"-Pair\">\uff13-\uff11\uff0ePair<\/span><\/h3>\n<p>Pair\u306f\u3001<span>2<\/span>\u3064\u306e\u5024\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u3067\u3059\u3002<span>Pair<\/span>\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">data class Pair<out a=\"\" out=\"\" b=\"\">(\r\n    val first: A,\r\n    val second: B\r\n) : Serializable\r\n\/\/Pair\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u308b\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\r\nval pair = Pair(\"Taro\", 20)\r\nprintln(pair.first) \/\/ Taro\r\nprintln(pair.second) \/\/ 20<\/out><\/pre>\n<h3><span id=\"-Tripl\">\uff13-\uff12\uff0eTripl<\/span><\/h3>\n<p>Triple\u306f\u3001<span>3<\/span>\u3064\u306e\u5024\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u3067\u3059\u3002<span>Triple<\/span>\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"prettyprint lang:default decode:true\">data class Triple(\r\n    val first: A,\r\n    val second: B,\r\n    val third: C\r\n) : Serializable\r\n\r\nval triple = Triple(\"Taro\", 20, \"Tokyo\")\r\nprintln(triple.first) \/\/ Taro\r\nprintln(triple.second) \/\/ 20\r\nprintln(triple.third) \/\/ Tokyo<\/pre>\n<p>&nbsp;<\/p>\n<h2><span id=\"i-2\">\uff14\uff0e\u307e\u3068\u3081<\/span><\/h2>\n<p>\u3053\u306e\u7ae0\u3067\u306f\u3001<span>Kotlin<\/span>\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3057\u305f\u3002\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u3001\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306e\u30af\u30e9\u30b9\u3067\u3042\u308a\u3001<span>equals<\/span>\u30e1\u30bd\u30c3\u30c9\u3084<span>hashCode<\/span>\u30e1\u30bd\u30c3\u30c9\u306a\u3069\u3092\u81ea\u52d5\u7684\u306b\u751f\u6210\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u308a\u3001\u5206\u89e3\u5ba3\u8a00\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b<span>Pair<\/span>\u3068<span>Triple<\/span>\u3068\u3044\u3046<span>2<\/span>\u3064\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u3001<span>2<\/span>\u3064\u3084<span>3<\/span>\u3064\u306e\u5024\u3092\u95a2\u9023\u4ed8\u3051\u3066\u8fd4\u3057\u305f\u3044\u3068\u304d\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<p>\u30c7\u30fc\u30bf\u30af\u30e9\u30b9\u306f\u3001<span>Kotlin<\/span>\u306e\u4fbf\u5229\u306a\u6a5f\u80fd\u306e\u4e00\u3064\u3067\u3059\u3002\u30c7\u30fc\u30bf\u3092\u6271\u3046\u3068\u304d\u306b\u306f\u3001\u305c\u3072\u6d3b\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kotlin\u306edata class\u3068\u306f\u3001\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3059\u308b\u5f79\u5272\u306e\u30af\u30e9\u30b9\u306b\u4f7f\u3046\u8a18\u6cd5\u306e\u3053\u3068\u3067\u3059\u3002 \u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u30fb\u6bd4\u8f03\u306e\u305f\u3081\u306e\u95a2\u6570\u3092\u81ea\u52d5\u3067\u751f\u6210\u3059\u308b\u3001\u30af\u30e9\u30b9\u3092\u767a\u5c55\u3055\u305b\u305f\u7269\u3067\u3059\u3002 \u305d\u3093\u306adata class\u306b\u3064\u3044\u3066 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4026,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/4023"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/comments?post=4023"}],"version-history":[{"count":7,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/4023\/revisions"}],"predecessor-version":[{"id":6133,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/posts\/4023\/revisions\/6133"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/media\/4026"}],"wp:attachment":[{"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/media?parent=4023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bold.ne.jp\/engineer-club\/wp-json\/wp\/v2\/categories?post=4023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}