{"version":"1.0","blog_url":"https://yohhoy.hatenadiary.jp/","title":"hashCode\u30e1\u30bd\u30c3\u30c9\u306e\u304a\u624b\u8efd\u5b9f\u88c5","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohhoy.hatenadiary.jp%2Fentry%2F20130805%2Fp1\" title=\"hashCode\u30e1\u30bd\u30c3\u30c9\u306e\u304a\u624b\u8efd\u5b9f\u88c5 - yohhoy\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"yohhoy","published":"2013-08-05 00:00:00","author_url":"https://blog.hatena.ne.jp/yohhoy/","height":"190","provider_url":"https://hatena.blog","categories":["Java"],"description":"Java 7\u4ee5\u964d\u3067\u306f\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9java.util.Objects\u304c\u8ffd\u52a0\u3055\u308c\u3066\u304a\u308a*1\u3001\u30e6\u30fc\u30b6\u5b9a\u7fa9\u30af\u30e9\u30b9\u306ehashCode\u30e1\u30bd\u30c3\u30c9\u5b9f\u88c5\u306b\u5229\u7528\u3067\u304d\u308b\u30d8\u30eb\u30d1\u30e1\u30bd\u30c3\u30c9java.util.Objects#hash(Object...)\u3092\u63d0\u4f9b\u3059\u308b\u3002 class X { private int m1; private String m2; private Object m3; // ... @Override public boolean equals(Object obj) { // (\u7565) } @Override public int hashCode() { // \u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u6307\u5b9a\u3057\u3066has\u2026","blog_title":"yohhoy\u306e\u65e5\u8a18","type":"rich","provider_name":"Hatena Blog","url":"https://yohhoy.hatenadiary.jp/entry/20130805/p1","image_url":null}