{"provider_name":"Hatena Blog","provider_url":"https://hatena.blog","version":"1.0","height":"190","author_name":"hjm333","type":"rich","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhjm333.hatenablog.com%2Fentry%2F2015%2F12%2F25%2F231645\" title=\"\u300eJava\u306e\u7406\u8ad6\u3068\u5b9f\u8df5: \u4e26\u884c\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30fb\u30af\u30e9\u30b9\u300f\u3092\u8aad\u3093\u3067 - The King&#39;s Museum\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u4e26\u884c\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30fb\u30af\u30e9\u30b9 \u8a18\u4e8b\uff1a Java\u306e\u7406\u8ad6\u3068\u5b9f\u8df5: \u4e26\u884c\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30fb\u30af\u30e9\u30b9 \u30e1\u30e2\uff1a Doug Lea \u6c0f\u306e util.concurrent \u304c\u3044\u3051\u3066\u308b Map \u306e\u6b74\u53f2 Hashtable: JDK 1.0 \u767b\u5834\u3002\u540c\u671f\u5316\u3055\u308c\u305f Map\u3002\u540c\u671f\u5316\u304c\u5fc5\u8981\u306a\u3044\u5834\u5408\u306b\u9045\u3044\u3002 HashMap \u3068 Collections.synchronizedMap: JDK1.2 \u3067\u767b\u5834\u3002\u540c\u671f\u5316\u3055\u308c\u306a\u3044\u57fa\u5e95\u30af\u30e9\u30b9\u3068\u540c\u671f\u5316\u3055\u308c\u305f\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u3067\u4f7f\u3044\u5206\u3051\u304c\u53ef\u80fd\u306b\u3002 Hashtable \u3068 HashMap \u306e\u554f\u984c\u70b9 \u4e21\u8005\u3068\u3082\u30c6\u30fc\u30d6\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u30b9\u30ec\u30c3\u30c9\u306f\u4e00\u3064\u3060\u3051\u3068\u3044\u3046\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u554f\u984c \u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u30fbput-\u2026","blog_url":"https://hjm333.hatenablog.com/","published":"2015-12-25 23:16:45","title":"\u300eJava\u306e\u7406\u8ad6\u3068\u5b9f\u8df5: \u4e26\u884c\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30fb\u30af\u30e9\u30b9\u300f\u3092\u8aad\u3093\u3067","author_url":"https://blog.hatena.ne.jp/hjm333/","blog_title":"The King's Museum","url":"https://hjm333.hatenablog.com/entry/2015/12/25/231645","width":"100%","categories":["Java\u306e\u7406\u8ad6\u3068\u5b9f\u8df5","Java"]}