{"blog_url":"https://plugout.hateblo.jp/","provider_url":"https://hatena.blog","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/P/PlugOut/20190627/20190627004436.jpg","provider_name":"Hatena Blog","title":"Java\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u77e5\u308b","author_url":"https://blog.hatena.ne.jp/PlugOut/","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fplugout.hateblo.jp%2Fentry%2F2022%2F04%2F02%2F124353\" title=\"Java\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u77e5\u308b - Unknown Region\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","author_name":"PlugOut","width":"100%","type":"rich","blog_title":"Unknown Region","url":"https://plugout.hateblo.jp/entry/2022/04/02/124353","published":"2022-04-02 12:43:53","categories":["Java"],"description":"\u5099\u5fd8\u9332\u304c\u3066\u3089\u30e1\u30e2\u3002 \u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305fJava\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b\u3068\u30b9\u30de\u30fc\u30c8\u3002 \u4f8b: javap -v Demo.class | grep \"major version\" | awk '{ print $3 - 44 }' \u203b Demo.class\u306f\u5bfe\u8c61\u306eclass\u30d5\u30a1\u30a4\u30eb"}