{"height":"190","blog_url":"https://xuwei-k.hatenablog.com/","description":"\u554f\u984c\u3067\u3059\u3002 \u4ee5\u4e0b\u306eA2, B2, B3\u306f\u3001\u7d30\u304b\u3044\u5b9a\u7fa9\u65b9\u6cd5\u306f\u9055\u3046\u3051\u308c\u3069\u3001\u5b9f\u969b\u306b\u306f\u307b\u3068\u3093\u3069\u540c\u3058\u5b9a\u7fa9\u3067\u3059\u304c\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u6bce\u306e\u30b5\u30a4\u30ba(\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u3055\u308c\u308b\u30e1\u30e2\u30ea\u306e\u91cf)\u3001\u3068\u3057\u3066\u306f\u3001\u3069\u308c\u304c\u4e00\u756a\u52b9\u7387\u304c\u3044\u3044\u3067\u3057\u3087\u3046\u304b\uff1f\u3069\u308c\u3082\u540c\u3058\u3067\u3057\u3087\u3046\u304b\uff1f \u3053\u306e\u554f\u984c\u306b\u5b8c\u74a7\u306b\u7b54\u3048\u3089\u308c\u308b\u81ea\u4fe1\u304c\u3042\u308b\u4eba\u306f\u3001\u3053\u306e\u5148\u3092\u8aad\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002 package example sealed abstract class A1(val x: Int) case class A2(y: String) extends A1(2) // \u5b9f\u7528\u7684\u306b\u306f\u3001\u305d\u306e\u4ed6\u306eA1\u3084B1\u306esub class\u3084object\u3082 // \u3042\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u304c\u3001\u76f4\u63a5\u95a2\u4fc2\u306a\u3044\u306e\u3067\u2026","provider_name":"Hatena Blog","title":"Scala\u306b\u304a\u3051\u308b\u7d30\u304b\u3044class\u306e\u5b9a\u7fa9\u65b9\u6cd5\u3068\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u6bce\u306e\u30b5\u30a4\u30ba","published":"2024-01-03 10:51:51","blog_title":"xuwei-k's blog","categories":["scala"],"version":"1.0","url":"https://xuwei-k.hatenablog.com/entry/2024/01/03/105151","author_name":"xuwei","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/xuwei/","image_url":null,"width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fxuwei-k.hatenablog.com%2Fentry%2F2024%2F01%2F03%2F105151\" title=\"Scala\u306b\u304a\u3051\u308b\u7d30\u304b\u3044class\u306e\u5b9a\u7fa9\u65b9\u6cd5\u3068\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u6bce\u306e\u30b5\u30a4\u30ba - xuwei-k&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich"}