{"id":115955,"date":"2024-03-23T04:47:24","date_gmt":"2024-03-22T19:47:24","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%95%e3%83%a9%e3%82%a4%e3%82%a6%e3%82%a7%e3%82%a4%e3%83%88%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-04T11:17:29","modified_gmt":"2024-04-04T02:17:29","slug":"java%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%95%e3%83%a9%e3%82%a4%e3%82%a6%e3%82%a7%e3%82%a4%e3%83%88%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%95%e3%83%a9%e3%82%a4%e3%82%a6%e3%82%a7%e3%82%a4%e3%83%88%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95\/","title":{"rendered":"Java\u306b\u304a\u3051\u308b\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\u65b9\u6cd5"},"content":{"rendered":"<p>Java\u3067\u306f\u3001\u30d5\u30e9\u30a4\u30a6\u30a8\u30a4\u30c8\u30d1\u30bf\u30fc\u30f3\u3092\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff08\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30fb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff09\uff1a\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u64cd\u4f5c\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">interface<\/span> <span class=\"hljs-title class_\">Flyweight<\/span> {\r\n    <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">operation<\/span><span class=\"hljs-params\">()<\/span>;\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u5177\u4f53\u7684\u306a\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\uff09\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u64cd\u4f5c\u65b9\u6cd5\u3092\u5b9f\u88c5\u3057\u3066\u304a\u308a\u3001\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ConcreteFlyweight<\/span> <span class=\"hljs-keyword\">implements<\/span> <span class=\"hljs-title class_\">Flyweight<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> String intrinsicState;\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-title function_\">ConcreteFlyweight<\/span><span class=\"hljs-params\">(String intrinsicState)<\/span> {\r\n        <span class=\"hljs-built_in\">this<\/span>.intrinsicState = intrinsicState;\r\n    }\r\n\r\n    <span class=\"hljs-meta\">@Override<\/span>\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">operation<\/span><span class=\"hljs-params\">()<\/span> {\r\n        System.out.println(<span class=\"hljs-string\">\"\u5177\u4f53\u4eab\u5143\u5bf9\u8c61\u7684\u64cd\u4f5c\uff1a\"<\/span> + intrinsicState);\r\n    }\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u3066\u4eab\u5143\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\uff1a\u3053\u306e\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u306f\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u30fb\u7ba1\u7406\u3057\u3001\u4f5c\u6210\u6e08\u307f\u306e\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4fdd\u6301\u3059\u308b\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">FlyweightFactory<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> Map&lt;String, Flyweight&gt; flyweights = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HashMap<\/span>&lt;&gt;();\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> Flyweight <span class=\"hljs-title function_\">getFlyweight<\/span><span class=\"hljs-params\">(String key)<\/span> {\r\n        <span class=\"hljs-keyword\">if<\/span> (flyweights.containsKey(key)) {\r\n            <span class=\"hljs-keyword\">return<\/span> flyweights.get(key);\r\n        } <span class=\"hljs-keyword\">else<\/span> {\r\n            <span class=\"hljs-type\">Flyweight<\/span> <span class=\"hljs-variable\">flyweight<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ConcreteFlyweight<\/span>(key);\r\n            flyweights.put(key, flyweight);\r\n            <span class=\"hljs-keyword\">return<\/span> flyweight;\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5229\u7528\u3059\u308b\uff1a\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u5171\u6709\u30d5\u30a1\u30af\u30c8\u30ea\u3092\u901a\u3058\u3066\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u5f97\u3057\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Client<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-type\">FlyweightFactory<\/span> <span class=\"hljs-variable\">factory<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FlyweightFactory<\/span>();\r\n\r\n        <span class=\"hljs-type\">Flyweight<\/span> <span class=\"hljs-variable\">flyweight1<\/span> <span class=\"hljs-operator\">=<\/span> factory.getFlyweight(<span class=\"hljs-string\">\"A\"<\/span>);\r\n        flyweight1.operation();\r\n\r\n        <span class=\"hljs-type\">Flyweight<\/span> <span class=\"hljs-variable\">flyweight2<\/span> <span class=\"hljs-operator\">=<\/span> factory.getFlyweight(<span class=\"hljs-string\">\"B\"<\/span>);\r\n        flyweight2.operation();\r\n\r\n        <span class=\"hljs-type\">Flyweight<\/span> <span class=\"hljs-variable\">flyweight3<\/span> <span class=\"hljs-operator\">=<\/span> factory.getFlyweight(<span class=\"hljs-string\">\"A\"<\/span>);\r\n        flyweight3.operation();\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u308b\u3068<\/p>\n<pre class=\"post-pre\"><code>\u5177\u4f53\u4eab\u5143\u5bf9\u8c61\u7684\u64cd\u4f5c\uff1aA\r\n\u5177\u4f53\u4eab\u5143\u5bf9\u8c61\u7684\u64cd\u4f5c\uff1aB\r\n\u5177\u4f53\u4eab\u5143\u5bf9\u8c61\u7684\u64cd\u4f5c\uff1aA\r\n<\/code><\/pre>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30af\u30e9\u30b9\u306f\u6e21\u3055\u308c\u305f\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u5171\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u5f97\u3059\u308b\u3002\u5171\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3059\u3067\u306b\u4f5c\u6210\u6e08\u307f\u306e\u5834\u5408\u3001\u76f4\u63a5\u305d\u308c\u3092\u8fd4\u3059\u3002\u4f5c\u6210\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u3001\u65b0\u3057\u3044\u5171\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3066\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u4e2d\u306b\u4fdd\u5b58\u3059\u308b\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u3092\u901a\u3058\u3066\u5171\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u5f97\u3057\u3001\u305d\u306e\u64cd\u4f5c\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u3002\u5171\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u5171\u7528\u53ef\u80fd\u306a\u306e\u3067\u3001\u8907\u6570\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u540c\u3058\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5171\u7528\u3067\u304d\u3001\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u524a\u6e1b\u3067\u304d\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067\u306f\u3001\u30d5\u30e9\u30a4\u30a6\u30a8\u30a4\u30c8\u30d1\u30bf\u30fc\u30f3\u3092\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002 \u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff08\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30fb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff09\uff1a\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u64cd\u4f5c\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3002 public interf [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-115955","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\/ 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\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff08\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30fb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff09\uff1a\u5171\u6709\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u64cd\u4f5c\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3002 public interf [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u306b\u304a\u3051\u308b\u30d5\u30e9\u30a4\u30a6\u30a7\u30a4\u30c8\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-22T19:47:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-04T02:17:29+00:00\" \/>\n<meta name=\"author\" content=\"\u6d77\u6597, \u8475\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta 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