{"provider_url":"https://hatena.blog","blog_title":"A Memorandum","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/N/Naotsugu/20191225/20191225000550.png","version":"1.0","type":"rich","published":"2019-12-26 09:00:00","categories":["Java"],"provider_name":"Hatena Blog","blog_url":"https://blog1.mammb.com/","width":"100%","title":"Java Stream \u3067\u3088\u304f\u4f7f\u3046 Map \u5909\u63db","height":"190","author_url":"https://blog.hatena.ne.jp/Naotsugu/","description":"Map \u3078\u5909\u63db(\u30ad\u30fc\u91cd\u8907\u7121\u3057) Map \u3078\u5909\u63db(\u30ad\u30fc\u91cd\u8907\u6709\u308a) \u5024\u304c null \u5024\u3068\u306a\u308b\u5834\u5408\u306b\u6ce8\u610f LinkedHashMap \u3078\u5909\u63db \u4efb\u610f\u30ad\u30fc\u3067\u30b0\u30eb\u30fc\u30d4\u30f3\u30b0 \u4efb\u610f\u30ad\u30fc\u3067\u30b0\u30eb\u30fc\u30d4\u30f3\u30b0\u3057\u3066\u30de\u30c3\u30d4\u30f3\u30b0 \u30b0\u30eb\u30fc\u30d4\u30f3\u30b0\u3057\u3066\u96c6\u8a08 \u30b0\u30eb\u30fc\u30d7\u5206\u3051 Map \u3078\u5909\u63db(\u30ad\u30fc\u91cd\u8907\u7121\u3057) \u4ee5\u4e0b\u306e Item \u306e\u30ea\u30b9\u30c8\u3092 id \u3092\u30ad\u30fc\u306b\u3057\u305f Map \u306b\u5909\u63db\u3057\u307e\u3059\u3002 List<Item> list = Arrays.asList( new Item(9, \"apple\"), new Item(3, \"lemon\"), new Item(6, \"peach\")); collect() \u306b Collectors.toMap \u3092\u2026","url":"https://blog1.mammb.com/entry/2019/12/26/090000","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog1.mammb.com%2Fentry%2F2019%2F12%2F26%2F090000\" title=\"Java Stream \u3067\u3088\u304f\u4f7f\u3046 Map \u5909\u63db - 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>","author_name":"Naotsugu"}