{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftenshoku.mynavi.jp%2Fengineer%2Fguide%2Farticles%2Fjava-code%2Fcategory_frame%2F11\" title=\"\u3010Java\u30b3\u30fc\u30c9\u5165\u9580\u3011\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af_\u246aHashSet - \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>","categories":["\u8a00\u8a9e\u30fb\u958b\u767a","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e","Java"],"author_url":"https://blog.hatena.ne.jp/andengineer/","image_url":null,"type":"rich","provider_name":"Hatena Blog","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","version":"1.0","width":"100%","title":"\u3010Java\u30b3\u30fc\u30c9\u5165\u9580\u3011\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af_\u246aHashSet","height":"190","published":"2026-06-29 18:12:22","description":"\u91cd\u8907\u3092\u8a31\u3055\u306a\u3044\u8981\u7d20\u306e\u96c6\u5408 \u2013 HashSet HashSet\u306f\u3001\u8981\u7d20\u306e\u91cd\u8907\u3092\u8a31\u53ef\u3057\u306a\u3044\u96c6\u5408\u69cb\u9020\u3092\u8868\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u9806\u756a\u3082\u6301\u3061\u307e\u305b\u3093\u3002\u6570\u5b66\u3067\u306e\u96c6\u5408\u306b\u3082\u3088\u304f\u4f3c\u305f\u69cb\u9020\u3068\u8003\u3048\u3066\u826f\u3044\u3067\u3057\u3087\u3046\u3002HashSet\u30af\u30e9\u30b9\u3067\u5229\u7528\u3067\u304d\u308b\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002 HashSet\u30af\u30e9\u30b9\u306e\u4e3b\u306a\u30e1\u30bd\u30c3\u30c9 \u30e1\u30bd\u30c3\u30c9 \u6982\u8981 add(E e) \u8981\u7d20e\u3092\u633f\u5165 clear() \u3059\u3079\u3066\u306e\u8981\u7d20\u3092\u524a\u9664 contains(Object e) \u30bb\u30c3\u30c8\u306b\u8981\u7d20e\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3092\u5224\u5b9a isEmpty() \u30bb\u30c3\u30c8\u304c\u7a7a\u304b\u3092\u5224\u5b9a remove(Object e) \u8981\u7d20e\u3092\u524a\u9664 size() \u30bb\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u8981\u7d20\u306e\u6570\u3092\u53d6\u5f97 \u4ee5\u4e0b\u306f\u3001Has\u2026","provider_url":"https://hatena.blog","blog_url":"https://tenshoku.mynavi.jp/engineer/guide/","url":"https://tenshoku.mynavi.jp/engineer/guide/articles/java-code/category_frame/11","author_name":"andengineer"}