{"version":"1.0","provider_url":"https://hatena.blog","blog_url":"https://blog1.mammb.com/","categories":[],"height":"190","type":"rich","url":"https://blog1.mammb.com/entry/2023/05/29/090000","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/Naotsugu/","width":"100%","published":"2023-05-29 09:00:00","description":"\u306f\u3058\u3081\u306b \u30d7\u30ec\u30d3\u30e5\u30fc\u7248\u304b\u3089\u306e\u5909\u66f4\u70b9 Pattern Matching for switch \u306b\u3088\u308b\u6a5f\u80fd\u62e1\u5f35 switch \u30e9\u30d9\u30eb\u306b\u3088\u308b\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1 case \u30e9\u30d9\u30eb\u306e guard \u6761\u4ef6\u6307\u5b9a null \u3068 switch enum \u5b9a\u6570 \u30e9\u30d9\u30eb\u306e\u6539\u5584 case \u30e9\u30d9\u30eb\u306e Dominance(\u512a\u4f4d\u6027) \u578b\u306e\u7db2\u7f85\u6027(Exhaustiveness) \u30d1\u30bf\u30fc\u30f3\u5909\u6570\u5ba3\u8a00\u306e\u30b9\u30b3\u30fc\u30d7 switch \u3067\u767a\u751f\u3059\u308b\u30a8\u30e9\u30fc blog1.mammb.com \u306f\u3058\u3081\u306b Java17 \u3067\u30d5\u30a1\u30fc\u30b9\u30c8\u30fb\u30d7\u30ec\u30d3\u30e5\u30fc\u3068\u3057\u3066\u516c\u958b\u3055\u308c\u305f\u3001 switch \u3067\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u304c\u3001Java21 \u3067\u6b63\u5f0f\u30ea\u30ea\u30fc\u30b9\u306b\u306b\u306a\u308a\u307e\u3059\u3002 JEP 440 \u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog1.mammb.com%2Fentry%2F2023%2F05%2F29%2F090000\" title=\"Java21 \u3067\u6b63\u5f0f\u8ffd\u52a0\u3055\u308c\u305f switch \u3067\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1(JEP 441:  Pattern Matching for switch) - A Memorandum\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"Naotsugu","blog_title":"A Memorandum","title":"Java21 \u3067\u6b63\u5f0f\u8ffd\u52a0\u3055\u308c\u305f switch \u3067\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1(JEP 441:  Pattern Matching for switch)","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/N/Naotsugu/20200724/20200724174249.png"}