{"title":"Kotlin\u306eNullable\u578b\u3092\u30e2\u30ca\u30c9\u3063\u307d\u304f\u3057\u3066\u307f\u305f","height":"190","version":"1.0","author_name":"ngsw_taro","published":"2014-04-06 14:48:11","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/ngsw_taro/","url":"https://taro.hatenablog.jp/entry/2014/04/06/144811","blog_url":"https://taro.hatenablog.jp/","categories":["Kotlin","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"description":"\u6628\u65e5\u3001@seri_k\u3055\u3093\u4e3b\u50ac\u306e\u7b2c\u4e94.\u4e94\u56de #\u6e0b\u8c37java\u306b\u53c2\u52a0\u3057\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u300cKotlin Nullable\u578b\u3092\u30e2\u30ca\u30c9\u3063\u307d\u304f\u3057\u3066\u307f\u305f\u300d\u3068\u3044\u3046\u30bf\u30a4\u30c8\u30eb\u3067\u767a\u8868\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002\u305d\u306e\u5185\u5bb9\u3092\u3082\u3046\u5c11\u3057\u8a73\u3057\u304f\u89e3\u8aac\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u306a\u304a\u30bf\u30a4\u30c8\u30eb\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u300c\u30e2\u30ca\u30c9\u300d\u3068\u3044\u3046\u8a00\u8449\u306f\u672c\u30a8\u30f3\u30c8\u30ea\u306b\u306f\u767b\u5834\u3057\u307e\u305b\u3093\u3002 \u80cc\u666f Nullable\u578b\u3068\u306f Kotlin\u306eNull\u5b89\u5168(Null-Safety)\u306e\u4ed5\u7d44\u307f\u3068\u3057\u3066\u3001\u5909\u6570\u306f\u975eNull\u578b(NotNull)\u3068Null\u8a31\u5bb9\u578b(Nullable)\u306e2\u3064\u306b\u5225\u308c\u307e\u3059\u3002\u3053\u3093\u306a\u5177\u5408\u306bNotNull\u306b\u306fnull\u3092\u4ee3\u5165\u3067\u304d\u307e\u305b\u3093\u304c\u3001Nullable\u306b\u306f\u4ee3\u5165\u3067\u304d\u307e\u3059\u3002 val a: I\u2026","provider_name":"Hatena Blog","blog_title":"\u7b97\u8b5c\u738b\u306b\u304a\u308c\u306f\u306a\u308b!!!!","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftaro.hatenablog.jp%2Fentry%2F2014%2F04%2F06%2F144811\" title=\"Kotlin\u306eNullable\u578b\u3092\u30e2\u30ca\u30c9\u3063\u307d\u304f\u3057\u3066\u307f\u305f - \u7b97\u8b5c\u738b\u306b\u304a\u308c\u306f\u306a\u308b!!!!\" 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","image_url":null,"width":"100%"}