{"version":"1.0","provider_name":"Hatena Blog","image_url":null,"title":"\u3010Java\u3011\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u306e\u914d\u5217\u306f\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306e\u578b\u5f15\u6570\u306b\u4f7f\u3048\u308b","width":"100%","published":"2017-05-20 12:35:21","blog_title":"\u9060\u304d\u541b\u3078","provider_url":"https://hatena.blog","height":"190","categories":["\u6280\u8853\u30e1\u30e2","Java"],"author_name":"tookikimie","description":"Java\u3067\u306f\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306e\u578b\u5f15\u6570\u306b\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u304c\u4f7f\u3048\u306a\u3044\u3068\u3044\u3046\u306e\u306f\u57fa\u672c\u4e2d\u306e\u57fa\u672c\u3060\u3068\u601d\u3044\u307e\u3059\u304c\u3001 \u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u306e\u914d\u5217 \u306f\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 import java.util.*; public class Main { public static void main(String[] args) { Optional<Integer> integerOpt = Optional.of(1); System.out.println(\"Optional<Integer>: \" + integerOpt); // -> Optional<Integer>: Optional[1] // Opti\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftookikimie.hatenablog.com%2Fentry%2F2017%2F05%2F20%2F123521\" title=\"\u3010Java\u3011\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u306e\u914d\u5217\u306f\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306e\u578b\u5f15\u6570\u306b\u4f7f\u3048\u308b - \u9060\u304d\u541b\u3078\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://tookikimie.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/tookikimie/","url":"https://tookikimie.hatenablog.com/entry/2017/05/20/123521","type":"rich"}