{"width":"100%","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnagise.hatenablog.jp%2Fentry%2F20171220%2F1513780658\" title=\" Java Generics Hell - \u30d6\u30ea\u30c3\u30b8\u30e1\u30bd\u30c3\u30c9 - \u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306e\u8133\u307f\u305d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","published":"2017-12-20 23:37:38","type":"rich","blog_title":"\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306e\u8133\u307f\u305d","categories":["Java","Generics"],"author_name":"Nagise","author_url":"https://blog.hatena.ne.jp/Nagise/","image_url":null,"url":"https://nagise.hatenablog.jp/entry/20171220/1513780658","title":" Java Generics Hell - \u30d6\u30ea\u30c3\u30b8\u30e1\u30bd\u30c3\u30c9","blog_url":"https://nagise.hatenablog.jp/","description":"Java Generics Hell \u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0\u30fc 20\u65e5\u76ee\u3002 \u524d\u56de(19\u65e5\u76ee) \u5185\u90e8\u30af\u30e9\u30b9\u3068\u578b\u5909\u6570\u306e\u30b9\u30b3\u30fc\u30d7 \u8aad\u8005\u306e\u63a8\u5968\u30b9\u30ad\u30eb\u3068\u3057\u3066\u306fOCJP Silver\u3050\u3089\u3044\u3092\u60f3\u5b9a\u3057\u3066\u3044\u308b\u3002 \u5171\u5909\u623b\u308a\u5024 Java5\u4ee5\u964d\u3067\u306f\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3068\u304d\u306b\u3001\u623b\u308a\u5024\u3092\u3088\u308a\u5177\u4f53\u7684\u306a\u578b\u3068\u3057\u3066\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3053\u3068\u304c\u8a31\u3055\u308c\u3066\u3044\u308b\u3002 public interface Parent { Number getValue(); } \u3053\u306ejava.lang.Number\u578b\u3092\u8fd4\u3059getValue()\u30e1\u30bd\u30c3\u30c9\u3092Child\u578b\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3068\u304d\u306bNumber\u306e\u5b50\u3067\u3042\u308bInteger\u578b\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 publi\u2026"}