{"blog_title":"A Memorandum","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/N/Naotsugu/20170622/20170622220119.png","title":"10\u5e74\u306e\u9577\u304d\u306b\u6e21\u308a Java \u306e\u53ef\u5909\u9577\u5f15\u6570\u3092\u904e\u4fe1\u3057\u3066\u3044\u305f\u8a71","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog1.mammb.com%2Fentry%2F2017%2F06%2F22%2F222438\" title=\"10\u5e74\u306e\u9577\u304d\u306b\u6e21\u308a Java \u306e\u53ef\u5909\u9577\u5f15\u6570\u3092\u904e\u4fe1\u3057\u3066\u3044\u305f\u8a71 - 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>","published":"2017-06-22 22:24:38","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/Naotsugu/","type":"rich","description":"\u53ef\u5909\u9577\u5f15\u6570\u306e\u30eb\u30fc\u30d7\u3067 \u30cc\u30eb\u30dd\u767a\u751f \u666e\u901a\u306e\u547c\u3073\u51fa\u3057 \u306a\u3093\u3060!? \u3053\u308c \u5ff5\u306e\u305f\u3081 \u3069\u3046\u3057\u3066\u3082 null \u3092\u6e21\u3057\u305f\u3044\u5834\u5408 \u307e\u3068\u3081 \u53ef\u5909\u9577\u5f15\u6570\u306e\u30eb\u30fc\u30d7\u3067 \u30cc\u30eb\u30dd\u767a\u751f \u5148\u65e5\u3068\u3042\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3001\u53ef\u5909\u9577\u5f15\u6570\u3092 for - each \u3057\u3066\u3044\u308b\u7b87\u6240\u3067\u30cc\u30eb\u30dd\u306b\u306a\u3063\u3066\u3044\u305f\u3002 \u5b9f\u969b\u306b\u306f\u305a\u3063\u3068\u8907\u96d1\u3060\u304c\u3001\u7c21\u5358\u306b\u66f8\u304f\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a for \u30eb\u30fc\u30d7\u3067\u306e\u30cc\u30eb\u30dd\u3002 public void method(String... args) { for (String string : args) { // java.lang.NullPointerException // ... } } \u3053\u306e10\u5e74 \u53ef\u5909\u9577\u5f15\u6570\u304c null \u3092\u53d7\u3051\u53d6\u2026","url":"https://blog1.mammb.com/entry/2017/06/22/222438","provider_url":"https://hatena.blog","version":"1.0","categories":["Java"],"blog_url":"https://blog1.mammb.com/","author_name":"Naotsugu","height":"190","width":"100%"}