{"height":"190","width":"100%","author_url":"https://blog.hatena.ne.jp/andengineer/","url":"https://tenshoku.mynavi.jp/engineer/guide/articles/java-code/category_time/01","published":"2026-07-01 09:20:51","description":"Calendar\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u306b\u306f\u3001\uff08new\u6f14\u7b97\u5b50\u3067\u306f\u306a\u304f\uff09getInstance\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u307e\u3059\u3002 var cal = Calendar.getInstance(); \u65e5\u4ed8\uff0f\u6642\u523b_\u76ee\u6b21 \u65e5\u4ed8\uff0f\u6642\u523b getTime\u30e1\u30bd\u30c3\u30c9 get\u30e1\u30bd\u30c3\u30c9 set\u30e1\u30bd\u30c3\u30c9 add\u30e1\u30bd\u30c3\u30c9 roll\u30e1\u30bd\u30c3\u30c9 clear\u30e1\u30bd\u30c3\u30c9 before\uff0fequals\uff0fafter\u30e1\u30bd\u30c3\u30c9","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftenshoku.mynavi.jp%2Fengineer%2Fguide%2Farticles%2Fjava-code%2Fcategory_time%2F01\" title=\"\u3010Java\u30b3\u30fc\u30c9\u5165\u9580\u3011\u65e5\u4ed8\uff0f\u6642\u523b_\u2460\u65e5\u4ed8\uff0f\u6642\u523b - \u30a2\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2 - \u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u3053\u3068\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089\u3002\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u3010Java\u30b3\u30fc\u30c9\u5165\u9580\u3011\u65e5\u4ed8\uff0f\u6642\u523b_\u2460\u65e5\u4ed8\uff0f\u6642\u523b","categories":["\u8a00\u8a9e\u30fb\u958b\u767a","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e","Java"],"type":"rich","provider_name":"Hatena Blog","version":"1.0","author_name":"andengineer","provider_url":"https://hatena.blog","blog_url":"https://tenshoku.mynavi.jp/engineer/guide/","blog_title":"\u30a2\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2 - \u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u3053\u3068\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089\u3002"}