{"id":23663,"date":"2024-03-16T23:01:12","date_gmt":"2024-03-16T14:01:12","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ae%e3%82%aa%e3%83%96%e3%82%b8%e3%82%a7%e3%82%af%e3%83%88%e3%81%ab%e5%80%a4%e3%82%92%e4%bb%a3%e5%85%a5%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b\/"},"modified":"2025-08-07T16:53:06","modified_gmt":"2025-08-07T07:53:06","slug":"java%e3%81%ae%e3%82%aa%e3%83%96%e3%82%b8%e3%82%a7%e3%82%af%e3%83%88%e3%81%ab%e5%80%a4%e3%82%92%e4%bb%a3%e5%85%a5%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ae%e3%82%aa%e3%83%96%e3%82%b8%e3%82%a7%e3%82%af%e3%83%88%e3%81%ab%e5%80%a4%e3%82%92%e4%bb%a3%e5%85%a5%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b\/","title":{"rendered":"Java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"

Java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u5272\u308a\u5f53\u3066\u308b\u65b9\u6cd5\u306f2\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n

    \n
  1. \u76f4\u63a5\u4ee3\u5165\uff1a1\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5225\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u4ee3\u5165\u3059\u308b\u306b\u306f\u3001\u7b49\u53f7\uff08=\uff09\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u53c2\u7167\u304c\u30bf\u30fc\u30b2\u30c3\u30c8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30b3\u30d4\u30fc\u3055\u308c\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u540c\u3058\u30e1\u30e2\u30ea\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5909\u66f4\u306f\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u3082\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    For example:<\/p>\n

    \u305f\u3068\u3048\u3070\u3001<\/p>\n

    Object obj1 = new Object();\r\nObject obj2 = obj1; \/\/ \u5c06obj1\u7684\u5f15\u7528\u8d4b\u503c\u7ed9obj2\r\n<\/code><\/pre>\n
      \n
    1. \u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u307e\u305f\u306f\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u5bfe\u8c61\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u307e\u305f\u306f\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u3092\u4f7f\u7528\u3057\u3066\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u751f\u6210\u3055\u308c\u3001\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u304c\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30b3\u30d4\u30fc\u3055\u308c\u3001\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u30bd\u30fc\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u7570\u306a\u308b\u30e1\u30e2\u30ea\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u3059\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n
      \u4f8b\u3048\u3070\u3001<\/p>\n
      class MyClass {\r\n    private int value;\r\n    \r\n    public MyClass(int value) {\r\n        this.value = value;\r\n    }\r\n    \r\n    \/\/ \u7701\u7565\u5176\u4ed6\u4ee3\u7801\r\n}\r\n\r\nMyClass obj1 = new MyClass(10);\r\nMyClass obj2 = new MyClass(obj1.getValue()); \/\/ \u4f7f\u7528obj1\u7684\u5c5e\u6027\u503c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684MyClass\u5bf9\u8c61\r\n<\/code><\/pre>\n
      \u3053\u308c\u3089\u306e2\u3064\u306e\u4ee3\u5165\u65b9\u6cd5\u306f\u3001\u7570\u306a\u308b\u72b6\u6cc1\u3067\u7570\u306a\u308b\u76ee\u7684\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u76f4\u63a5\u4ee3\u5165\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3078\u306e\u53c2\u7167\u306e\u30b3\u30d4\u30fc\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u4e00\u65b9\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3084\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u4f5c\u6210\u3055\u308c\u3001\u305d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u304c\u521d\u671f\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      Java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u5272\u308a\u5f53\u3066\u308b\u65b9\u6cd5\u306f2\u3064\u3042\u308a\u307e\u3059\u3002 \u76f4\u63a5\u4ee3\u5165\uff1a1\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5225\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u4ee3\u5165\u3059\u308b\u306b\u306f\u3001\u7b49\u53f7\uff08=\uff09\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u53c2\u7167\u304c\u30bf\u30fc\u30b2\u30c3\u30c8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30b3\u30d4\u30fc\u3055\u308c\u3001\u30bf […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-23663","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\nJava\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\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.silicloud.com\/ja\/blog\/java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\" \/>\n<meta property=\"og:description\" content=\"Java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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