{"version":"1.0","height":"190","published":"2009-11-14 01:56:21","type":"rich","blog_title":"\u81ea\u5206\u306e\u4ed5\u4e8b\u3092\u618e\u3080\u306b\u306f\u4eba\u751f\u306f\u4f59\u308a\u306b\u3082\u77ed\u3044","author_url":"https://blog.hatena.ne.jp/GARAPON/","blog_url":"https://garapon.hatenablog.com/","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgarapon.hatenablog.com%2Fentry%2F20091114%2F1258217781\" title=\"Java\u306e\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u6c17\u3092\u3064\u3051\u3066\u304a\u304f\u3053\u3068 - \u81ea\u5206\u306e\u4ed5\u4e8b\u3092\u618e\u3080\u306b\u306f\u4eba\u751f\u306f\u4f59\u308a\u306b\u3082\u77ed\u3044\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","width":"100%","provider_name":"Hatena Blog","title":"Java\u306e\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u6c17\u3092\u3064\u3051\u3066\u304a\u304f\u3053\u3068","url":"https://garapon.hatenablog.com/entry/20091114/1258217781","author_name":"GARAPON","categories":[],"description":"\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306b\u3064\u3044\u3066\u3044\u308d\u3044\u308d\u8003\u3048\u3066\u308b\u6a5f\u4f1a\u304c\u591a\u304b\u3063\u305f\u306e\u3067\u3061\u3087\u3063\u3068\u307e\u3068\u3081\u3066\u307f\u305f\u3002 Singleton\u306edouble-checked locking\u306f\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3060\u3068\u3044\u3046\u8a71 double-checked locking\u3068Singleton\u30d1\u30bf\u30fc\u30f3 \u30cd\u30c3\u30c8\u3067\u3082\u5404\u6240\u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u3051\u308c\u3069\u3001\u30e1\u30b8\u30e3\u30fc\u306a\u66f8\u304d\u65b9\u306a\u306e\u3067\u307f\u3093\u306a\u3044\u3064\u306e\u9593\u306b\u304b\u4f7f\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3002*1\u88ab\u5bb3\u306b\u4f1a\u3046\u53ef\u80fd\u6027\u304c\u975e\u5e38\u306b\u4f4e\u3044\u306e\u3067\u5bfe\u7b56\u306f\u307b\u307c\u5fc5\u8981\u306a\u3044\u3051\u3069\u77e5\u3063\u3066\u304a\u3044\u3066\u640d\u306f\u306a\u3044\u3002double-checked locking\u3068\u306f\u3069\u3093\u306a\u30bd\u30fc\u30b9\u304b\u3068\u3044\u3046\u3068 public static Singleton getInstance(){ if (insta\u2026"}