{"provider_url":"https://hatena.blog","description":"\u6b21\u306e\u3088\u3046\u306a\u30af\u30e9\u30b9\u304c\u3042\u3063\u3066\u3001 class Foo<X> { Foo( Class<X> cl ) {} } \u4efb\u610f\u306e\u30af\u30e9\u30b9\u3092\u5f15\u6570\u3068\u3057\u3066\u3001\u5883\u754c\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3092\u578b\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3059\u308bFoo\u3092\u4f5c\u6210\u3057\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002 Class<?> cl = null; Foo<?> foo = new Foo<?>( cl ); // \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc \u3053\u3046\u3044\u3046\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u95a2\u6570\u3092\u7528\u610f\u3059\u308b\u3068\u3046\u307e\u304f\u304b\u3051\u307e\u3059\u3002 static <X> Foo<X> foo( Class<X> cl ) { return new Foo<X>( cl ); } \u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3092\u4f7f\u3063\u3066 \u2026","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Funageanu.hatenablog.com%2Fentry%2F20081101%2F1225534242\" title=\" \u5883\u754c\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3092\u578b\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3059\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308b\u3002 - \u3046\u306a\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u3046\u306a\u306e\u65e5\u8a18","height":"190","width":"100%","published":"2008-11-01 19:10:42","author_name":"unageanu","type":"rich","version":"1.0","image_url":null,"blog_url":"https://unageanu.hatenablog.com/","url":"https://unageanu.hatenablog.com/entry/20081101/1225534242","categories":["Java"],"title":" \u5883\u754c\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3092\u578b\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3059\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308b\u3002","author_url":"https://blog.hatena.ne.jp/unageanu/"}