{"author_name":"andengineer","blog_title":"\u30a2\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2 - \u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u3053\u3068\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089\u3002","blog_url":"https://tenshoku.mynavi.jp/engineer/guide/","provider_url":"https://hatena.blog","type":"rich","categories":["\u8a00\u8a9e\u30fb\u958b\u767a","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e","Java"],"version":"1.0","provider_name":"Hatena Blog","url":"https://tenshoku.mynavi.jp/engineer/guide/articles/java-code/category_generics/01","published":"2026-07-01 09:08:56","author_url":"https://blog.hatena.ne.jp/andengineer/","title":"\u3010Java\u30b3\u30fc\u30c9\u5165\u9580\u3011\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9_\u2460\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u306e\u57fa\u672c","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftenshoku.mynavi.jp%2Fengineer%2Fguide%2Farticles%2Fjava-code%2Fcategory_generics%2F01\" title=\"\u3010Java\u30b3\u30fc\u30c9\u5165\u9580\u3011\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9_\u2460\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u306e\u57fa\u672c - \u30a2\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2 - \u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u3053\u3068\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089\u3002\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u305f\u3068\u3048\u3070\u3001List<String>\u306e\u3088\u3046\u306b\u3001<\u2026>\u306e\u5f62\u5f0f\u3067\u578b\u3092\u660e\u793a\u3059\u308b\u3053\u3068\u3067\u3001String\u578b\u5c02\u7528\u306e\u30ea\u30b9\u30c8\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002 List<String> l = new ArrayList<String>(); l.add(\"Java\"); l.add(\"Scala\"); l.add(\"Ruby\"); String str = l.get(0); \u540c\u3058\u30b3\u30fc\u30c9\u3092\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u3092\u5229\u7528\u3057\u306a\u3044\u3067\u8a18\u8ff0\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 List l = new ArrayList(); l.add(\"Java\"); l.add(\"Scala\"); l.add(\"Ruby\"); String str = (Stri\u2026","image_url":null,"height":"190","width":"100%"}