{"url":"https://mtoyoshi.hateblo.jp/entry/20090105/1231165135","height":"190","version":"1.0","blog_title":"mtoyoshi\u958b\u767a\u30e1\u30e2","provider_url":"https://hatena.blog","categories":["Java","groovy"],"published":"2009-01-05 23:18:55","author_url":"https://blog.hatena.ne.jp/mtoyoshi/","blog_url":"https://mtoyoshi.hateblo.jp/","width":"100%","title":"Java7\u306eNull\u30c1\u30a7\u30c3\u30af","author_name":"mtoyoshi","provider_name":"Hatena Blog","type":"rich","image_url":null,"description":"\u3072\u304c\u3084\u3059\u3092\u3055\u3093\u306eJava7\u306f\u3057\u3087\u307c\u304f\u306a\u308a\u305d\u3046\u3092\u8aad\u3093\u3067\u3002 null\u30c1\u30a7\u30c3\u30af\u304c\u5165\u3063\u305f\u306e\u306f\u826f\u3044\u3093\u3060\u3051\u3069\u306d\u3002 \u3093\uff1f\u306a\u3093\u3060\u308d\u3046\u3001null\u30c1\u30a7\u30c3\u30af\u3068\u3044\u3046\u306e\u306f\u3002\u300c\u5165\u308b\u6a5f\u80fd\u300d\u3068\u3057\u3066\u5f15\u7528\u3055\u308c\u3066\u3044\u308b\u90e8\u5206\u3092\u8aad\u3093\u3067\u307f\u308b\u3068\u30fb\u30fb\u30fb Null dereference expressions - Null checks with '?' syntax similar to Groovy... lettign developers avoid a nest of null checks. \u3042\u3089\u3089\u3002\u306a\u306b\u3084\u3089\u9762\u767d\u305d\u3046\u3002Groovy\u306b\u4f3c\u305f\u300c\uff1f\u300d\u6587\u6cd5\u3067Null\u30c1\u30a7\u30c3\u30af\u304c\u884c\u3048\u308b\u3068\u3042\u308b\u3002\u3068\u3044\u3046\u308f\u3051\u3067Groovy\u3067\u8a66\u3057\u3066\u307f\u305f\u3002 name =\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmtoyoshi.hateblo.jp%2Fentry%2F20090105%2F1231165135\" title=\"Java7\u306eNull\u30c1\u30a7\u30c3\u30af - mtoyoshi\u958b\u767a\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}