{"categories":[],"author_name":"gatd90","blog_title":"ikhr\u306e\u30d6\u30ed\u30b0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fikhr.hateblo.jp%2Fentry%2F2018%2F08%2F04%2F103025\" title=\"Java\u306enull\u30c1\u30a7\u30c3\u30af\u3067if\u6587\u3092\u4f7f\u3044\u305f\u304f\u306a\u3044\uff08\u500b\u4eba\u7684\u306b\u306f\u89e3\u6c7a\uff09 - ikhr\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","type":"rich","description":"null\u30c1\u30a7\u30c3\u30af\u306e\u5b9f\u88c5\u3067\u60a9\u3093\u3067\u3044\u305f\u3002 Java\u306enull\u30c1\u30a7\u30c3\u30af\u3067if\u6587\u3092\u4f7f\u3044\u305f\u304f\u306a\u3044\uff08\u89e3\u6c7a\u305b\u305a\uff09 - ikhr\u306e\u30d6\u30ed\u30b0 OpenJDK\u306e\u30bd\u30fc\u30b9\u3092\u898b\u3066\u3044\u3066\u3075\u3068java.util.Objects\u306e\u5b58\u5728\u3092\u77e5\u308b\u3002 java.util.Objects\u306fJava 7\u306b\u8ffd\u52a0\u3055\u308c\u305f\u30af\u30e9\u30b9\u3002 \u8a66\u3057\u3066\u307f\u305f\u3002 // ----- \u3053\u3053\u304b\u3089 ----- // \u4f55\u3089\u304b\u306e\u51e6\u7406\u306e\u623b\u308a\u306bnull\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3068\u4eee\u5b9a ParentBean parentBean = new ParentBean(); parentBean.setChildBean(null); // \u5b9f\u5229\u7528\u3067\u306f\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3067\u30e1\u30bd\u30c3\u30c9\u51e6\u7406\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067null\u2026","provider_url":"https://hatena.blog","title":"Java\u306enull\u30c1\u30a7\u30c3\u30af\u3067if\u6587\u3092\u4f7f\u3044\u305f\u304f\u306a\u3044\uff08\u500b\u4eba\u7684\u306b\u306f\u89e3\u6c7a\uff09","image_url":null,"url":"https://ikhr.hateblo.jp/entry/2018/08/04/103025","published":"2018-08-04 10:30:25","blog_url":"https://ikhr.hateblo.jp/","height":"190","width":"100%","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/gatd90/"}