{"author_name":"k_e_l_t","categories":[],"version":"1.0","blog_url":"https://kelt.hatenadiary.com/","blog_title":"\u30b2\u30fc\u30e0\u904d\u6b74","url":"https://kelt.hatenadiary.com/entry/20100629","type":"rich","provider_url":"https://hatena.blog","height":"190","published":"2010-06-29 00:00:00","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkelt.hatenadiary.com%2Fentry%2F20100629\" title=\"\u30ad\u30e3\u30d0\u3067\u306f\u306a\u3044 - \u30b2\u30fc\u30e0\u904d\u6b74\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"provider_name":"Hatena Blog","description":"Cast a spell \u4ee5\u5916\u306bCast\u306a\u3093\u3066\u5358\u8a9e\u307f\u306a\u3044\u304b\u3089\u3055\u3001\u6295\u5c04\u30fb\u6295\u5f71\u3059\u308b\u3063\u3066\u8a00\u308f\u308c\u3066\u3082\u30d3\u30db\u30db\u304b\u3089\u30df\u30fc\u30f3\u3063\u3066\u5149\u7dda\u51fa\u3066\u308b\u30a4\u30e1\u30fc\u30b8\u3057\u304b\u306a\u3044\u3093\u3060\u306a\u3002\u305d\u3082\u305d\u3082\u6295\u5c04\u306a\u3093\u3066\u3044\u308f\u308c\u3066\u3082\u3001Cos\u3068\u304b\u4ed5\u4e8b\u91cf\u3068\u304b\u4e00\u6b21\u5909\u63db\u3063\u3066\u30a4\u30e1\u30fc\u30b8\u304b\u3089\u96e2\u8131\u3067\u304d\u306a\u3044\u3002 \u306a\u3069\u3068\u305a\u3063\u3068\u601d\u3063\u3066\u3044\u305f\u306e\u3060\u304c\u3001 \u300cC\u8a00\u8a9e\u306f\u306a\u3093\u306e\u578b\u3067\u3082Cast\u3067\u304d\u308b\u3051\u3069\u3001java\u306f\u7d99\u627f\u95a2\u4fc2\u304c\u306a\u3044\u3068ClassCastException\u306b\u306a\u3063\u3061\u307e\u3046\u3093\u3060\u3063\u3066\u3002\u300d \u3063\u3066\u3053\u3068\u3092\u4eca\u65e5\u77e5\u3063\u305f\u3089\u3001\u3088\u3046\u3084\u304f\u30a4\u30e1\u30fc\u30b8\u304c\u7e4b\u304c\u3063\u305f\u3002 \u3044\u3084\u3042\u3001java\u306f\u96e3\u3057\u3044\u306d\u3048\uff08\u2190\u30c0\u30e1\u3059\u304e","title":"\u30ad\u30e3\u30d0\u3067\u306f\u306a\u3044","width":"100%","author_url":"https://blog.hatena.ne.jp/k_e_l_t/"}