{"id":83376,"date":"2024-03-21T02:47:01","date_gmt":"2024-03-20T17:47:01","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e9%87%8d%e8%a4%87%e3%81%99%e3%82%8b%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%95%e3%82%a7%e3%83%bc%e3%82%b9%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%97%e3%82%92%e5%9b%9e%e9%81%bf%e3%81%99\/"},"modified":"2024-04-04T16:29:41","modified_gmt":"2024-04-04T07:29:41","slug":"java%e3%81%a7%e9%87%8d%e8%a4%87%e3%81%99%e3%82%8b%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%95%e3%82%a7%e3%83%bc%e3%82%b9%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%97%e3%82%92%e5%9b%9e%e9%81%bf%e3%81%99","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e9%87%8d%e8%a4%87%e3%81%99%e3%82%8b%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%95%e3%82%a7%e3%83%bc%e3%82%b9%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%97%e3%82%92%e5%9b%9e%e9%81%bf%e3%81%99\/","title":{"rendered":"Java\u3067\u91cd\u8907\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u547c\u3073\u51fa\u3057\u3092\u56de\u907f\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>Java\u3067\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u547c\u3073\u51fa\u3057\u306e\u91cd\u8907\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30d5\u30e9\u30b0\u3092\u5229\u7528\u3059\u308b: \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u547c\u3073\u51fa\u3059\u524d\u306b\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u304c\u65e2\u306b\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u8868\u3059\u30d5\u30e9\u30b0\u3092\u8a2d\u5b9a\u3057\u3001\u65e2\u306b\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u518d\u5ea6\u547c\u3073\u51fa\u3055\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-type\">boolean<\/span> <span class=\"hljs-variable\">isCalled<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-literal\">false<\/span>;\r\n\r\n<span class=\"hljs-keyword\">if<\/span> (!isCalled) {\r\n    <span class=\"hljs-comment\">\/\/ \u8c03\u7528\u63a5\u53e3<\/span>\r\n    isCalled = <span class=\"hljs-literal\">true<\/span>;\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u4f7f\u7528\u9501\u673a\u5236\uff1a\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u9501\u673a\u5236\u6765\u4fdd\u8bc1\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u8c03\u7528\u8be5\u63a5\u53e3\uff0c\u5176\u4ed6\u7ebf\u7a0b\u9700\u8981\u7b49\u5f85\u9501\u91ca\u653e\u540e\u624d\u80fd\u8c03\u7528\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">synchronized<\/span> (lock) {\r\n    <span class=\"hljs-comment\">\/\/ \u8c03\u7528\u63a5\u53e3<\/span>\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u5229\u7528\u3059\u308b\uff1a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u547c\u3073\u51fa\u3057\u524d\u306b\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u30bb\u30c3\u30c8\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u547c\u3073\u51fa\u3055\u308c\u305f\u56de\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3055\u305b\u3066\u304a\u304d\u3001\u30ab\u30a6\u30f3\u30bf\u30fc\u304c0\u3088\u308a\u5927\u304d\u3044\u5834\u5408\u306f\u3001\u4ee5\u964d\u547c\u3073\u51fa\u3057\u3092\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">count<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>;\r\n\r\n<span class=\"hljs-keyword\">if<\/span> (count == <span class=\"hljs-number\">0<\/span>) {\r\n    <span class=\"hljs-comment\">\/\/ \u8c03\u7528\u63a5\u53e3<\/span>\r\n    count++;\r\n}\r\n<\/code><\/pre>\n<p>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u91cd\u8907\u3057\u305f\u547c\u3073\u51fa\u3057\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306e\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u3092\u3044\u304f\u3064\u304b\u793a\u3057\u307e\u3057\u305f\u304c\u3001\u3069\u306e\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u304b\u306f\u5177\u4f53\u7684\u306a\u30d3\u30b8\u30cd\u30b9\u30b7\u30ca\u30ea\u30aa\u3068\u30cb\u30fc\u30ba\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u547c\u3073\u51fa\u3057\u306e\u91cd\u8907\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002 \u30d5\u30e9\u30b0\u3092\u5229\u7528\u3059\u308b: \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u547c\u3073\u51fa\u3059\u524d\u306b\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u304c\u65e2\u306b\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u8868\u3059\u30d5\u30e9\u30b0\u3092\u8a2d\u5b9a\u3057\u3001\u65e2\u306b\u547c\u3073 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-83376","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u3067\u91cd\u8907\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u547c\u3073\u51fa\u3057\u3092\u56de\u907f\u3059\u308b\u65b9\u6cd5 - Blog - Silicon 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