{"url":"https://m-yamamo0417.hatenadiary.org/entry/20090908","published":"2009-09-08 00:00:00","title":"","height":"190","provider_name":"Hatena Blog","categories":[],"blog_url":"https://m-yamamo0417.hatenadiary.org/","description":"\u304a\u4e16\u8a71\u306b\u306a\u3063\u3066\u304a\u308a\u307e\u3059\u3002\u793e\u5185\u306e\u4eba\u9593\u304c\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u305f\u3068\u304d\u306e\u8a71\u3067\u3059\u3002 \u30e1\u30bd\u30c3\u30c9\u304cpublic\u306b\u306a\u3063\u3066\u3044\u305f\u306e\u3067\u547c\u3093\u3067\u307f\u305f\u3089NullPointerException\u3002\u3088\u304f\u3042\u308b\u8a71\u3067\u3059\u3002 \u30bd\u30fc\u30b9\u3092\u8aad\u3093\u3067\u307f\u305f\u3089\u3001\u304a\u304a\u3088\u305d\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u3057\u305f\u3002 package do.not.use; class BadClass { Object a, b, c; public int enter(){ a = new Object(); int retA = methodA(); int retB = methodB(); return retA + retB; } public int methodA(){ b\u2026","author_url":"https://blog.hatena.ne.jp/m_yamamo0417/","version":"1.0","image_url":"https://cdn-ak.d.st-hatena.com/diary/m_yamamo0417/2009-09-08.png","provider_url":"https://hatena.blog","author_name":"m_yamamo0417","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fm-yamamo0417.hatenadiary.org%2Fentry%2F20090908\" title=\" - \u307b\u3069\u3088\u304f\u3057\u3063\u304b\u308a\" 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","blog_title":"\u307b\u3069\u3088\u304f\u3057\u3063\u304b\u308a","width":"100%"}