{"id":41241,"date":"2017-12-30T18:25:53","date_gmt":"2017-12-30T09:25:53","guid":{"rendered":"https:\/\/www.sejuku.net\/blog\/?p=41241"},"modified":"2024-05-06T11:45:43","modified_gmt":"2024-05-06T02:45:43","slug":"41241","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/41241","title":{"rendered":"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac)"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u30b7\u30b9\u30c6\u30e0\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30aa\u30aa\u30a4\u30b7\u3067\u3059\u3002<\/p>\n<p>Java\u8a00\u8a9e\u306e\u30c7\u30fc\u30bf\u578b\u306b\u306fint(\u6574\u6570\u578b)\u3084String(\u6587\u5b57\u5217\u578b)\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u578b\u304c\u5b58\u5728\u3057\u307e\u3059\u304c\u3001\u201ctrue\u201d\u304b\u201dfalse\u201d\u3092\u5224\u5b9a\u3059\u308b\u305f\u3081\u306b\u306fboolean(\u30d6\u30fc\u30ea\u30a2\u30f3)\u578b\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>boolean\u578b\u3068\u306f<\/b><\/li>\n<li><b>boolean\u578b\u306e\u4f7f\u3044\u65b9<\/b><\/li>\n<li><b>boolean\u578b\u3092if\u6587\u306e\u6761\u4ef6\u5206\u5c90\u3067\u4f7f\u3046\u65b9\u6cd5<\/b><\/li>\n<\/ul>\n<p><\/div><br \/>\n\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001boolean\u578b\u306e\u521d\u671f\u5024\u3001boolean\u3068Boolean\u306e\u9055\u3044\u3001Boolean\u306enull\u306a\u3069\u306e\u5fdc\u7528\u7684\u306a\u5185\u5bb9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3053\u308c\u3089\u306e\u65b9\u6cd5\u3092\u899a\u3048\u308b\u305f\u3081\u306b\u3001boolean\u578b\u306e\u4f7f\u3044\u65b9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\uff01<\/p>\n<p>\u306a\u304a\u3001Java\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/www.sejuku.net\/blog\/148098\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>boolean\u578b\u3068\u306f<\/h2>\n<p>boolean\u578b\u3068\u306f\u3001true(\u30c8\u30a5\u30eb\u30fc) \u307e\u305ffalse(\u30d5\u30a9\u30fc\u30eb\u30b9)\u306e\u3069\u3061\u3089\u304b\u306e\u30c7\u30fc\u30bf\u304c\u5fc5\u305a\u5165\u308b\u3053\u3068\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\u30c7\u30fc\u30bf\u578b\u3067\u3059\u30022\u5ea6\u66f8\u304d\u307e\u3059\u304ctrue\u307e\u305f\u306ffalse\u4ee5\u5916\u306f\u5165\u308a\u307e\u305b\u3093\uff01<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u610f\u5473\u306f\u3001<br \/>\ntrue = \u3000\u771f \u2192 \u306f\u3044<br \/>\nfalse =\u3000 \u507d \u2192 \u3044\u3044\u3048<br \/>\n\u3068\u899a\u3048\u3066\u304a\u304f\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u3053\u306eboolean\u578b\u3092\u4f7f\u3046\u4e3b\u306a\u5834\u9762\u306f\u3001<b>if\u6587\u3084for\u6587\u306a\u3069\u306e\u5236\u5fa1\u6587\u3067\u306e\u6761\u4ef6\u5206\u5c90\u306e\u3068\u304d<\/b>\u3067\u3059\u3002<\/p>\n<h2>boolean\u578b\u306e\u4f7f\u3044\u65b9<\/h2>\n<p>boolean\u578b\u306f\u30c7\u30fc\u30bf\u578b\u3067\u3059\u306e\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u4f7f\u3046\u524d\u306b\u300ctrue\u307e\u305f\u306ffalse\u3092\u5165\u308c\u307e\u3059\uff01\u300d\u3068<b>\u4e8b\u524d\u306b\u5ba3\u8a00\u3059\u308b\u5fc5\u8981<\/b>\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f7f\u3044\u65b9\u3092\u30a4\u30e1\u30fc\u30b8\u3057\u3084\u3059\u3044\u3088\u3046\u306b\u300c\u3042\u306a\u305f\u306e\u5e74\u9f62\u306f10\u6b73\u4ee5\u4e0a\u3067\u3059\u304b\uff1f\u300d\u3068\u3044\u3046\u8cea\u554f\u306e\u7d50\u679c\u3092\u5165\u308c\u308bboolean\u578b\u3092\u4f5c\u3063\u3066\u307f\u307e\u3059\u3002\u6b21\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) {\r\n        boolean isOverTeenage = false; \/\/ \u3044\u3044\u3048(false)\r\n        System.out.println(isOverTeenage);\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">false<\/pre>\n<p>&nbsp;<\/p>\n<p>\u6b21\u306b\u300c\u3042\u306a\u305f\u306e\u5e74\u9f62\u306f10\u6b73\u4ee5\u4e0a\u3067\u3059\u304b\uff1f\u300d\u306e\u5224\u5b9a\u7d50\u679c\u3092boolean\u578b\u306e\u5909\u6570\u306b\u5165\u308c\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    public static void main(String[] args) {\r\n        boolean isOverTeenage; \/\/ boolean\u578b\u306e\u5909\u6570\u3092\u5ba3\u8a00\r\n        int yourAge = 18; \/\/ \u3042\u306a\u305f\u306f18\u6b73\r\n\r\n        isOverTeenage = (yourAge &gt;= 10); \/\/ \u3010\u6761\u4ef6\u5f0f\u3011\r\n\r\n        System.out.println(isOverTeenage);\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">true<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306bboolean\u578b\u306f\u3001true(\u306f\u3044)\u307e\u305f\u306ffalse(\u3044\u3044\u3048)\u306e\u5224\u5b9a\u7d50\u679c\u3092\u5165\u308c\u308b\u305f\u3081\u306b\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<h2>boolean\u578b\u3092if\u6587\u306e\u6761\u4ef6\u5206\u5c90\u3067\u4f7f\u3046\u65b9\u6cd5<\/h2>\n<p>boolean\u578b\u3092\u4f7f\u3046\u4e3b\u306a\u5834\u9762\u306f\u3001if\u6587\u3084 for\u6587\u306a\u3069\u306e\u6761\u4ef6\u5206\u5c90\u3067\u4f7f\u3046\u3053\u3068\u3092\u524d\u8ff0\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u3053\u3067\u306f\u3001if\u6587\u306e\u6761\u4ef6\u5206\u5c90\u3067boolean\u578b\u3092\u4f7f\u3046\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\u6b21\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    public static void main(String[] args) {\r\n        boolean isOverTeenage = false; \/\/ boolean\u578b\u306e\u5909\u6570\u3092\u5ba3\u8a00\r\n        int yourAge = 18; \/\/ \u3042\u306a\u305f\u306f18\u6b73\r\n\r\n        isOverTeenage = (yourAge &gt;= 10); \/\/ \u3042\u306a\u305f\u306f18\u6b73\u3067\u3059\u304c10\u6b73\u4ee5\u4e0a\u3067\u3059\u306d\uff1f\r\n\r\n        if (isOverTeenage) { \/\/ isOverTeenage \u306f true \u304c\u5165\u308b\r\n            System.out.println(\"\u3042\u306a\u305f\u306f10\u6b73\u4ee5\u4e0a\u3067\u3059\uff01\");\r\n        } else {\r\n            System.out.println(\"\u3042\u306a\u305f\u306f10\u6b73\u672a\u6e80\u3067\u3059\uff01\");\r\n        }\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u3042\u306a\u305f\u306f10\u6b73\u4ee5\u4e0a\u3067\u3059\uff01<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306bif\u6587\u306e\u5224\u5b9a\u306bboolean\u578b\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u6761\u4ef6\u5206\u5c90\u306e\u51e6\u7406\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002if\u6587\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/21911\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/04\/image9-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011if\u6587\u3067\u6761\u4ef6\u5206\u5c90(else\u3001AND\/OR\u3001\u5426\u5b9a\u3001\u7701\u7565\u3001\u4e09\u9805\u6f14\u7b97\u5b50)<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h2>boolean\u578b\u306e\u521d\u671f\u5024<\/h2>\n<p>boolean\u578b\u306e\u521d\u671f\u5024\u306ffalse\u304c\u5165\u308a\u307e\u3059\u3002\u521d\u671f\u5024\u3068\u306f\u3001<b>\u5909\u6570\u3092\u5ba3\u8a00\u3057\u305f\u6642\u306b\u306f\u3058\u3081\u304b\u3089\u5165\u3063\u3066\u3044\u308b\u5024<\/b>\u306e\u3053\u3068\u3067\u3059\u3002\u4f8b\u3092\u898b\u3066\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    static boolean bool; \/\/ boolean\u3092\u30af\u30e9\u30b9\u5909\u6570\u3067\u5ba3\u8a00\r\n\r\n    public static void main(String[] args) {\r\n        System.out.println(bool);\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">false<\/pre>\n<p>\u6ce8\u610f\u3057\u3066\u307b\u3057\u3044\u306e\u304c\u3001<b>\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u5ba3\u8a00\u3057\u305f\u6642\u306f\u521d\u671f\u5024\u304c\u5165\u3089\u306a\u3044<\/b>\u3053\u3068\u3067\u3059\u3002\u521d\u671f\u5024\u306bfalse\u304c\u5165\u308b\u306e\u306f\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u307e\u305f\u306f\u30af\u30e9\u30b9\u5909\u6570\u3068\u3057\u3066\u5ba3\u8a00\u3057\u305f\u3068\u304d\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3068\u306f\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u5ba3\u8a00\u3057\u305f\u5909\u6570\u3067\u3059\u3002\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3068\u306f\u30af\u30e9\u30b9\u5185\u3067\u5ba3\u8a00\u3057\u305f\u5909\u6570\u3067\u3059\u3002<\/p>\n<p>\u30af\u30e9\u30b9\u5909\u6570\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/22426\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/05\/java-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011static\u5909\u6570(\u30af\u30e9\u30b9\u5909\u6570)\u306e\u4f7f\u3044\u65b9<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<p>\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u5ba3\u8a00\u3057\u305f\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3067\u3001\u521d\u671f\u5316(\u203b\u521d\u671f\u5024\u3092\u660e\u793a\u7684\u306b\u5165\u308c\u308b\u3053\u3068)\u3057\u306a\u3044\u307e\u307e\u5909\u6570\u3092\u5229\u7528\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002\u5b9f\u884c\u3057\u3066\u30a8\u30e9\u30fc\u306b\u306a\u308b\u306e\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    public static void main(String[] args) {\r\n        boolean bool; \/\/ boolean \u3092\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3067\u5ba3\u8a00\r\n        System.out.println(bool);\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">Exception in thread \"main\" java.lang.Error: Unresolved compilation problem: \r\n  The local variable isOverTeenage may not have been initialized<\/pre>\n<p>\u305d\u306e\u305f\u3081\u3001\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3068\u3057\u3066\u5ba3\u8a00\u3059\u308b\u6642\u306f\u521d\u671f\u5316\u306f\u5fc5\u305a\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n<h2>boolean\u3068Boolean\u306e\u9055\u3044\u3092\u89e3\u8aac<\/h2>\n<h3>Boolean\u3068\u306f<\/h3>\n<p>Boolean\u3068\u306f\u3001boolean\u578b\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u3053\u3068\u3067\u3001<b>boolean\u578b\u3092\u4fbf\u5229\u306b\u4f7f\u3046\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u6301\u3061\u307e\u3059<\/b>\u3002<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-41253\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/Boolean.png\" alt=\"Boolean\" width=\"281\" height=\"233\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/Boolean.png 281w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/Boolean-150x124.png 150w\" sizes=\"(max-width: 281px) 100vw, 281px\" \/><\/p>\n<p>boolean\u578b\u3068Boolean\u30af\u30e9\u30b9\u306e\u9055\u3044\u3092\u8868\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n<table id=\"tablepress-271\" class=\"tablepress tablepress-id-271\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">\u540d\u524d<\/th><th class=\"column-2\">\u540d\u524d<\/th><th class=\"column-3\">\u5909\u6570\u3068\u3057\u3066\u306e\u7279\u5fb4<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">boolean\u578b<\/td><td class=\"column-2\">\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b<\/td><td class=\"column-3\">\u5024\u3092\u6301\u3064<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Boolean\u30af\u30e9\u30b9<\/td><td class=\"column-2\">\u53c2\u7167\u578b<\/td><td class=\"column-3\">\u30af\u30e9\u30b9\u307e\u305f\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53c2\u7167\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-271 from cache -->\n<p>\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/22828\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/05\/shutterstock_595820321-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011Integer\u3068\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u57fa\u790e\u306e\u57fa\u790e\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff01<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h3>Boolean\u306fnull\u304c\u4f7f\u3048\u308b<\/h3>\n<p>Boolean\u306f\u30af\u30e9\u30b9\u306a\u306e\u3067null\u3082\u8868\u73fe\u3067\u304d\u307e\u3059\u3002null\u3068\u306f\u4f55\u3082\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u7279\u6b8a\u306a\u53c2\u7167\u3067\u3059\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    public static void main(String[] args) {\r\n        Boolean bool = Boolean.valueOf(true);\r\n        System.out.println(bool);\r\n\r\n        bool = null;\r\n        System.out.println(bool);\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">true\r\nnull<\/pre>\n<p>null\u304c\u5165\u3063\u3066\u3044\u308b\u5909\u6570\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u306f\u3001Boolean\u306b\u9650\u3089\u305a\u300cNullPointerException\u300d\u304c\u6295\u3052\u3089\u308c\u308b\u306e\u3067\u53d6\u308a\u6271\u3044\u306b\u306f\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>Boolean\u306ftoString\u30e1\u30bd\u30c3\u30c9\u306a\u3069\u304c\u4f7f\u3048\u308b<\/h3>\n<p>Boolean\u306f<b>boolean\u578b\u306e\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9<\/b>\u306a\u306e\u3067\u3001boolean\u3092\u4f7f\u3046\u4e0a\u3067\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<p>Boolean\u306etoString\u30e1\u30bd\u30c3\u30c9\u306fboolean\u578b\u306e\u5024\u3092\u6587\u5b57\u5217\u3067\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002true\u304c\u5165\u3063\u3066\u3044\u308b\u6642\u306f\u201ctrue\u201d\u3001false\u306f\u201cfalse\u201d\u304c\u8fd4\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    public static void main(String[] args) {\r\n        Boolean bool = Boolean.valueOf(true);\r\n        System.out.println(bool.toString());\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">true<\/pre>\n<p>toString\u30e1\u30bd\u30c3\u30c9\u306e\u5229\u7528\u5834\u9762\u306f\u3001\u4f8b\u3048\u3070\u3001\u6587\u5b57\u5217\u578b(String) \u201ctrue\u201d \u3068boolean\u578b\u306etrue\u304c\u540c\u3058\u304b\u3092\u6bd4\u8f03\u3057\u305f\u3044\u5834\u5408\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    public static void main(String[] args) {\r\n        Boolean bool = Boolean.valueOf(true); \/\/ Boolean\u30af\u30e9\u30b9\u306e true\r\n        String isStringBool = \"true\"; \/\/ String\u578b\u306e \"true\"\r\n        \r\n        \/\/ \u6587\u5b57\u5217\u3092\u53d6\u5f97(toString()) \u3057\u305f\u7d50\u679c\u3068\u6bd4\u8f03\u3059\u308b\r\n        String str = bool.toString();\r\n        if (str.equals(isStringBool)) {\r\n            System.out.println(\"str \u3068 isStringBool \u306f\u540c\u3058\u3067\u3059\");\r\n        } else {\r\n            System.out.println(\"str \u3068 isStringBool \u306f\u7570\u306a\u308a\u307e\u3059\");\r\n        }\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c:<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">str \u3068 isStringBool \u306f\u540c\u3058\u3067\u3059<\/pre>\n<p>\u6587\u5b57\u5217\u306e\u201ctrue\u201d\u3068boolean\u306etrue\u304c\u540c\u3058\u5224\u5b9a\u306b\u306a\u308a\u307e\u3057\u305f\uff01<\/p>\n<p>\u6587\u5b57\u5217\u306e\u6bd4\u8f03\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/14621\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/image8-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011\u6587\u5b57\u5217(String)\u3092\u6bd4\u8f03\u3059\u308b\u65b9\u6cd5(\u300c==\u300d\u3068\u300cequals\u300d)<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2025\u5e7412\u670829\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h2>\u5909\u6570\u3068\u30c7\u30fc\u30bf\u578b\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089\u3067\u89e3\u8aac<\/h2>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001boolean\u578b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3057\u305f\u304c\u3001\u5909\u6570\u306e\u5ba3\u8a00\u3084\u30c7\u30fc\u30bf\u578b\u5168\u822c\u306e\u8aac\u660e\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/22805\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/05\/howto-02-1-150x85.png\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010\u4e00\u76ee\u3067\u308f\u304b\u308bJava\u3011\u5909\u6570\u306e\u5ba3\u8a00\u3068\u4f7f\u3044\u65b9<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2025\u5e744\u670823\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3044\u304b\u304b\u3067\u3057\u305f\u304b\uff1f<\/p>\n<p>\u4eca\u56de\u306fboolean\u578b\u3068\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u3067\u3042\u308bBoolean\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002boolean\u578b\u306f\u201dtrue\u201d\u304b&#8221;false&#8221;\u306e\u3069\u3061\u3089\u304b\u306e<b>\u771f\u507d\u5024\u3092\u6271\u3046\u5834\u5408<\/b>\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u306eBoolean\u3092\u4f7f\u3048\u3070\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\u304c\u4f7f\u3048\u308b\u306e\u3067\u305c\u3072\u6d3b\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3082\u3057\u3001boolean\u578b\u306e\u4f7f\u3044\u65b9\u3092\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u3053\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u30b7\u30b9\u30c6\u30e0\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30aa\u30aa\u30a4\u30b7\u3067\u3059\u3002 Java\u8a00\u8a9e\u306e\u30c7\u30fc\u30bf\u578b\u306b\u306fint(\u6574\u6570\u578b)\u3084String(\u6587\u5b57\u5217\u578b)\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u578b\u304c\u5b58\u5728\u3057\u307e\u3059\u304c\u3001\u201ctrue\u201d\u304b\u201dfalse\u201d\u3092\u5224\u5b9a\u3059\u308b\u305f\u3081\u306b\u306fboolean(\u30d6\u30fc\u30ea\u30a2 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":43326,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2344],"tags":[67],"class_list":["post-41241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-study","tag-java"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sejuku.net\/blog\/41241\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sejuku.net\/blog\/41241\" \/>\n<meta property=\"og:site_name\" content=\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/sejuku2013\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/sejuku2013\/\" \/>\n<meta property=\"article:published_time\" content=\"2017-12-30T09:25:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-06T02:45:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/java_boolean.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/samuraijuku\" \/>\n<meta name=\"twitter:site\" content=\"@samuraijuku\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241\"},\"author\":{\"name\":\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/person\\\/e8ca7fd09857a736a25e6b4455a3ab61\"},\"headline\":\"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac)\",\"datePublished\":\"2017-12-30T09:25:53+00:00\",\"dateModified\":\"2024-05-06T02:45:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241\"},\"wordCount\":150,\"publisher\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2017\\\/12\\\/java_boolean.jpg\",\"keywords\":[\"Java\"],\"articleSection\":[\"Java\u5b66\u7fd2\"],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241\",\"name\":\"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2017\\\/12\\\/java_boolean.jpg\",\"datePublished\":\"2017-12-30T09:25:53+00:00\",\"dateModified\":\"2024-05-06T02:45:43+00:00\",\"description\":\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241#primaryimage\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2017\\\/12\\\/java_boolean.jpg\",\"contentUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2017\\\/12\\\/java_boolean.jpg\",\"width\":700,\"height\":400},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/41241#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/\",\"name\":\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\",\"description\":\"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u306e\u3059\u3079\u3066\u304c\u30b3\u30b3\u306b\u3002\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#organization\",\"name\":\"\u682a\u5f0f\u4f1a\u793eSAMURAI\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/07\\\/logo.png\",\"contentUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/07\\\/logo.png\",\"width\":600,\"height\":600,\"caption\":\"\u682a\u5f0f\u4f1a\u793eSAMURAI\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/sejuku2013\",\"https:\\\/\\\/x.com\\\/samuraijuku\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCCFOQO5aDK0xXam4cUQXT8g\\\/featured\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/person\\\/e8ca7fd09857a736a25e6b4455a3ab61\",\"name\":\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/507c280c5c67d2c11fec4fdba20e5bf1ec2fe91f9deb42d2ec50382778b311bf?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/507c280c5c67d2c11fec4fdba20e5bf1ec2fe91f9deb42d2ec50382778b311bf?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/507c280c5c67d2c11fec4fdba20e5bf1ec2fe91f9deb42d2ec50382778b311bf?s=96&d=mm&r=g\",\"caption\":\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8\"},\"description\":\"\u3010\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u3011 DX\u8a8d\u5b9a\u53d6\u5f97\u4e8b\u696d\u8005\u306b\u9078\u5b9a\u3055\u308c\u3066\u3044\u308b\u682a\u5f0f\u4f1a\u793eSAMURAI\u306e\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30fb\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u90e8\u304c\u904b\u55b6\u3002\u300c\u8cea\u306e\u9ad8\u3044IT\u6559\u80b2\u3092\u3001\u3059\u3079\u3066\u306e\u4eba\u306b\u300d\u3092\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u3001IT\u30fb\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u5b66\u3073\u59cb\u3081\u305f\u521d\u5b66\u8005\u306e\u65b9\u306b\u5411\u3051\u8a18\u4e8b\u3092\u57f7\u7b46\u3002 \u7d2f\u8a08\u6307\u5c0e\u8005\u65704\u4e075,000\u540d\u4ee5\u4e0a\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u300c\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u300d\u3001\u7d2f\u8a08\u767b\u9332\u8005\u65701\u4e078,000\u4eba\u4ee5\u4e0a\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u30b5\u30fc\u30d3\u30b9\u300c\u4f8d\u30c6\u30e9\u30b3\u30e4\u300d\u3067\u6271\u3046\u6559\u6750\u958b\u767a\u306e\u30ce\u30a6\u30cf\u30a6\u30012013\u5e74\u306e\u5275\u696d\u304b\u3089\u904b\u55b6\u3067\u5f97\u305f\u77e5\u898b\u306b\u57fa\u3065\u304d\u3001\u8a18\u4e8b\u306e\u57f7\u7b46\u3060\u3051\u3067\u306a\u304f\u7de8\u96c6\u30fb\u76e3\u4fee\u3082\u62c5\u5f53\u3057\u3066\u3044\u307e\u3059\u3002 \u3010\u5c02\u9580\u5206\u91ce\u3011 IT\\\/Web\u958b\u767a\\\/AI\u30fb\u30ed\u30dc\u30c3\u30c8\u958b\u767a\\\/\u30a4\u30f3\u30d5\u30e9\u958b\u767a\\\/\u30b2\u30fc\u30e0\u958b\u767a\\\/AI\\\/Web\u30c7\u30b6\u30a4\u30f3\",\"sameAs\":[\"https:\\\/\\\/www.sejuku.net\\\/\",\"https:\\\/\\\/www.facebook.com\\\/sejuku2013\\\/\",\"https:\\\/\\\/www.instagram.com\\\/samuraiengineer_official\\\/\",\"https:\\\/\\\/x.com\\\/https:\\\/\\\/twitter.com\\\/samuraijuku\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCCFOQO5aDK0xXam4cUQXT8g\"],\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/author\\\/samurai-blog\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","description":"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.sejuku.net\/blog\/41241","og_locale":"ja_JP","og_type":"article","og_title":"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","og_description":"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002","og_url":"https:\/\/www.sejuku.net\/blog\/41241","og_site_name":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","article_publisher":"https:\/\/www.facebook.com\/sejuku2013","article_author":"https:\/\/www.facebook.com\/sejuku2013\/","article_published_time":"2017-12-30T09:25:53+00:00","article_modified_time":"2024-05-06T02:45:43+00:00","og_image":[{"width":700,"height":400,"url":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/java_boolean.jpg","type":"image\/jpeg"}],"author":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8","twitter_card":"summary_large_image","twitter_creator":"@https:\/\/twitter.com\/samuraijuku","twitter_site":"@samuraijuku","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.sejuku.net\/blog\/41241#article","isPartOf":{"@id":"https:\/\/www.sejuku.net\/blog\/41241"},"author":{"name":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8","@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/person\/e8ca7fd09857a736a25e6b4455a3ab61"},"headline":"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac)","datePublished":"2017-12-30T09:25:53+00:00","dateModified":"2024-05-06T02:45:43+00:00","mainEntityOfPage":{"@id":"https:\/\/www.sejuku.net\/blog\/41241"},"wordCount":150,"publisher":{"@id":"https:\/\/www.sejuku.net\/blog\/#organization"},"image":{"@id":"https:\/\/www.sejuku.net\/blog\/41241#primaryimage"},"thumbnailUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/java_boolean.jpg","keywords":["Java"],"articleSection":["Java\u5b66\u7fd2"],"inLanguage":"ja"},{"@type":"WebPage","@id":"https:\/\/www.sejuku.net\/blog\/41241","url":"https:\/\/www.sejuku.net\/blog\/41241","name":"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","isPartOf":{"@id":"https:\/\/www.sejuku.net\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sejuku.net\/blog\/41241#primaryimage"},"image":{"@id":"https:\/\/www.sejuku.net\/blog\/41241#primaryimage"},"thumbnailUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/java_boolean.jpg","datePublished":"2017-12-30T09:25:53+00:00","dateModified":"2024-05-06T02:45:43+00:00","description":"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac) \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002","breadcrumb":{"@id":"https:\/\/www.sejuku.net\/blog\/41241#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sejuku.net\/blog\/41241"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.sejuku.net\/blog\/41241#primaryimage","url":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/java_boolean.jpg","contentUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/12\/java_boolean.jpg","width":700,"height":400},{"@type":"BreadcrumbList","@id":"https:\/\/www.sejuku.net\/blog\/41241#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.sejuku.net\/blog\/"},{"@type":"ListItem","position":2,"name":"\u3010Java\u5165\u9580\u3011boolean\u3068Boolean\u306e\u4f7f\u3044\u65b9(\u521d\u671f\u5024\u3082\u89e3\u8aac)"}]},{"@type":"WebSite","@id":"https:\/\/www.sejuku.net\/blog\/#website","url":"https:\/\/www.sejuku.net\/blog\/","name":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","description":"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u306e\u3059\u3079\u3066\u304c\u30b3\u30b3\u306b\u3002","publisher":{"@id":"https:\/\/www.sejuku.net\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sejuku.net\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/www.sejuku.net\/blog\/#organization","name":"\u682a\u5f0f\u4f1a\u793eSAMURAI","url":"https:\/\/www.sejuku.net\/blog\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2023\/07\/logo.png","contentUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2023\/07\/logo.png","width":600,"height":600,"caption":"\u682a\u5f0f\u4f1a\u793eSAMURAI"},"image":{"@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/sejuku2013","https:\/\/x.com\/samuraijuku","https:\/\/www.youtube.com\/channel\/UCCFOQO5aDK0xXam4cUQXT8g\/featured"]},{"@type":"Person","@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/person\/e8ca7fd09857a736a25e6b4455a3ab61","name":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/secure.gravatar.com\/avatar\/507c280c5c67d2c11fec4fdba20e5bf1ec2fe91f9deb42d2ec50382778b311bf?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/507c280c5c67d2c11fec4fdba20e5bf1ec2fe91f9deb42d2ec50382778b311bf?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/507c280c5c67d2c11fec4fdba20e5bf1ec2fe91f9deb42d2ec50382778b311bf?s=96&d=mm&r=g","caption":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8"},"description":"\u3010\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u3011 DX\u8a8d\u5b9a\u53d6\u5f97\u4e8b\u696d\u8005\u306b\u9078\u5b9a\u3055\u308c\u3066\u3044\u308b\u682a\u5f0f\u4f1a\u793eSAMURAI\u306e\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30fb\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u90e8\u304c\u904b\u55b6\u3002\u300c\u8cea\u306e\u9ad8\u3044IT\u6559\u80b2\u3092\u3001\u3059\u3079\u3066\u306e\u4eba\u306b\u300d\u3092\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u3001IT\u30fb\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u5b66\u3073\u59cb\u3081\u305f\u521d\u5b66\u8005\u306e\u65b9\u306b\u5411\u3051\u8a18\u4e8b\u3092\u57f7\u7b46\u3002 \u7d2f\u8a08\u6307\u5c0e\u8005\u65704\u4e075,000\u540d\u4ee5\u4e0a\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u300c\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u300d\u3001\u7d2f\u8a08\u767b\u9332\u8005\u65701\u4e078,000\u4eba\u4ee5\u4e0a\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u30b5\u30fc\u30d3\u30b9\u300c\u4f8d\u30c6\u30e9\u30b3\u30e4\u300d\u3067\u6271\u3046\u6559\u6750\u958b\u767a\u306e\u30ce\u30a6\u30cf\u30a6\u30012013\u5e74\u306e\u5275\u696d\u304b\u3089\u904b\u55b6\u3067\u5f97\u305f\u77e5\u898b\u306b\u57fa\u3065\u304d\u3001\u8a18\u4e8b\u306e\u57f7\u7b46\u3060\u3051\u3067\u306a\u304f\u7de8\u96c6\u30fb\u76e3\u4fee\u3082\u62c5\u5f53\u3057\u3066\u3044\u307e\u3059\u3002 \u3010\u5c02\u9580\u5206\u91ce\u3011 IT\/Web\u958b\u767a\/AI\u30fb\u30ed\u30dc\u30c3\u30c8\u958b\u767a\/\u30a4\u30f3\u30d5\u30e9\u958b\u767a\/\u30b2\u30fc\u30e0\u958b\u767a\/AI\/Web\u30c7\u30b6\u30a4\u30f3","sameAs":["https:\/\/www.sejuku.net\/","https:\/\/www.facebook.com\/sejuku2013\/","https:\/\/www.instagram.com\/samuraiengineer_official\/","https:\/\/x.com\/https:\/\/twitter.com\/samuraijuku","https:\/\/www.youtube.com\/channel\/UCCFOQO5aDK0xXam4cUQXT8g"],"url":"https:\/\/www.sejuku.net\/blog\/author\/samurai-blog"}]}},"_links":{"self":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/posts\/41241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/comments?post=41241"}],"version-history":[{"count":0,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/posts\/41241\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/media\/43326"}],"wp:attachment":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/media?parent=41241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/categories?post=41241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/tags?post=41241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}