{"id":9554,"date":"2024-03-15T03:17:36","date_gmt":"2024-03-14T18:17:36","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%aearraylist%e3%82%af%e3%83%a9%e3%82%b9%e3%81%aeremove%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e6%ad%a3%e3%81%97%e3%81%8f%e4%bd%bf\/"},"modified":"2025-08-04T02:23:34","modified_gmt":"2025-08-03T17:23:34","slug":"java%e3%81%aearraylist%e3%82%af%e3%83%a9%e3%82%b9%e3%81%aeremove%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e6%ad%a3%e3%81%97%e3%81%8f%e4%bd%bf","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%aearraylist%e3%82%af%e3%83%a9%e3%82%b9%e3%81%aeremove%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e6%ad%a3%e3%81%97%e3%81%8f%e4%bd%bf\/","title":{"rendered":"Java ArrayList remove()\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3010\u524a\u9664\u51e6\u7406\u3092\u89e3\u8aac\u3011"},"content":{"rendered":"<p>ArrayList.remove()\u30e1\u30bd\u30c3\u30c9\u306f\u3001ArrayList\u304b\u3089\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u69cb\u6587\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code>arrayList.remove(index);\r\n<\/code><\/pre>\n<p>index \u306f\u524a\u9664\u3057\u305f\u3044\u8981\u7d20\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u6ce8\u610f\uff1aArrayList \u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f 0 \u304b\u3089\u59cb\u307e\u308b\u306e\u3067\u3001\u6700\u521d\u306e\u8981\u7d20\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f 0 \u3067\u3042\u308a\u30012 \u756a\u76ee\u306e\u8981\u7d20\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f 1 \u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u79c1\u305f\u3061\u304c\u3044\u304f\u3064\u304b\u306e\u6587\u5b57\u5217\u3092\u683c\u7d0d\u3057\u305fArrayList\u3092\u6301\u3063\u3066\u3044\u308b\u5834\u5408\uff1a<\/p>\n<pre class=\"post-pre\"><code>ArrayList&lt;String&gt; list = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ArrayList<\/span>&lt;&gt;();\r\nlist.add(<span class=\"hljs-string\">\"apple\"<\/span>);\r\nlist.add(<span class=\"hljs-string\">\"banana\"<\/span>);\r\nlist.add(<span class=\"hljs-string\">\"cherry\"<\/span>);\r\n<\/code><\/pre>\n<p>\u6307\u5b9a\u3055\u308c\u305f\u4f4d\u7f6e\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u305f\u3081\u306b\u3001remove() \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>list.remove(<span class=\"hljs-number\">1<\/span>); <span class=\"hljs-comment\">\/\/ \u5220\u9664\u7b2c\u4e8c\u4e2a\u5143\u7d20\uff0c\u5373\"banana\"<\/span>\r\n<\/code><\/pre>\n<p>\u73fe\u5728\u306e\u30ea\u30b9\u30c8\u306b\u542b\u307e\u308c\u308b\u8981\u7d20\u306f[ &#8220;apple&#8221;,&#8221;cherry&#8221; ]\u3067\u3059\u3002<\/p>\n<p>\u8981\u6839\u636e\u5143\u7d20\u503c\u5220\u9664\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528 remove(Object obj) \u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code>list.remove(<span class=\"hljs-string\">\"apple\"<\/span>); <span class=\"hljs-comment\">\/\/ \u5220\u9664\u503c\u4e3a\"apple\"\u7684\u5143\u7d20<\/span>\r\n<\/code><\/pre>\n<p>\u73fe\u5728\u3001\u30ea\u30b9\u30c8\u5185\u306e\u8981\u7d20\u306f[&#8220;cherry&#8221;]\u3067\u3059\u3002<\/p>\n<p>\u6307\u5b9a\u3055\u308c\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u7bc4\u56f2\u5916\u3067\u3042\u308b\u304b\u3001ArrayList\u5185\u306b\u8981\u7d20\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u3001IndexOutOfBoundsException\u4f8b\u5916\u304c\u30b9\u30ed\u30fc\u3055\u308c\u308b\u3053\u3068\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001remove()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u6e21\u3055\u308c\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3084\u8981\u7d20\u306e\u5024\u304c\u9069\u5207\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ArrayList.remove()\u30e1\u30bd\u30c3\u30c9\u306f\u3001ArrayList\u304b\u3089\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u69cb\u6587\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a arrayList.remove(index); index \u306f\u524a\u9664\u3057\u305f\u3044\u8981\u7d20\u306e\u30a4\u30f3\u30c7\u30c3\u30af [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2044,42,1217,93,94,110],"class_list":["post-9554","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-arraylist","tag-java","tag-remove","tag-93","tag-94","tag-110"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java ArrayList remove()\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3010\u524a\u9664\u51e6\u7406\u3092\u89e3\u8aac\u3011 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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