{"id":131970,"date":"2024-03-25T21:21:10","date_gmt":"2024-03-25T12:21:10","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java-arraylist%ef%bc%88%e3%82%b3%e3%83%ac%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%ef%bc%89%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89\/"},"modified":"2024-04-05T19:46:34","modified_gmt":"2024-04-05T10:46:34","slug":"java-arraylist%ef%bc%88%e3%82%b3%e3%83%ac%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%ef%bc%89%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java-arraylist%ef%bc%88%e3%82%b3%e3%83%ac%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%ef%bc%89%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89\/","title":{"rendered":"Java ArrayList\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u5b8c\u5168\u30ac\u30a4\u30c9"},"content":{"rendered":"

Java\u306eArrayList\u306fJava\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e1\u3064\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u306e\u683c\u7d0d\u3068\u64cd\u4f5c\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n

    \n
  1. \u57fa\u672c\u6982\u5ff5:<\/li>\n<\/ol>\n
      \n
    1. ArrayList\u306f\u52d5\u7684\u914d\u5217\u3067\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u81ea\u52d5\u7684\u306b\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/li>\n
    2. ArrayList\u306f\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u306e\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u3092\u542b\u3081 \u3042\u3089\u3086\u308b\u578b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4fdd\u7ba1\u3067\u304d\u307e\u3059\u3002<\/li>\n
    3. ArrayList\u306f\u9806\u5e8f\u3092\u4fdd\u6301\u3057\u305f\u307e\u307e\u8981\u7d20\u3092\u4fdd\u6301\u3067\u304d\u308bList\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ol>\n
        \n
      1. ArrayList\u3092\u4f5c\u6210\u3059\u308b<\/li>\n<\/ol>\n

        ArrayList\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u7a7a\u306eArrayList\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n

        ArrayList<String> list = new<\/span> ArrayList<\/span><>();\r\n<\/code><\/pre>\n
          \n
        1. \u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/li>\n<\/ol>\n
          ArrayList\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306fadd()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u8ffd\u52a0\u3055\u308c\u305f\u8981\u7d20\u306fArrayList\u306e\u6700\u5f8c\u306b\u914d\u7f6e\u3055\u308c\u307e\u3059\u3002<\/p>\n
          list.add(\"Java\"<\/span>);\r\n<\/code><\/pre>\n
            \n
          1. \u8981\u7d20\u53d6\u5f97<\/li>\n<\/ol>\n
            ArrayList\u306e\u6307\u5b9a\u3057\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f4d\u7f6e\u306e\u8981\u7d20\u306f\u3001get()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n
            String<\/span> element<\/span> =<\/span> list.get(0<\/span>);\r\n<\/code><\/pre>\n
              \n
            1. \u8981\u7d20\u306e\u5909\u66f4\uff1a<\/li>\n<\/ol>\n
              ArrayList\u306e\u6307\u5b9a\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u8981\u7d20\u306f\u3001set()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/p>\n
              list.set(0<\/span>, \"Python\"<\/span>);\r\n<\/code><\/pre>\n
                \n
              1. \u8981\u7d20\u306e\u524a\u9664:<\/li>\n<\/ol>\n
                ArrayList\u306b\u3042\u308b\u6307\u5b9a\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f4d\u7f6e\u306e\u8981\u7d20\u306f\u3001remove()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u524a\u9664\u3067\u304d\u307e\u3059\u3002<\/p>\n
                list.remove(0<\/span>);\r\n<\/code><\/pre>\n
                  \n
                1. \u5404\u8981\u7d20\u3092\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3059\u308b\uff1a<\/li>\n<\/ol>\n
                  for-each\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u3066ArrayList\u306e\u5168\u3066\u306e\u8981\u7d20\u3092\u30a4\u30c6\u30ec\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002<\/p>\n
                  for<\/span> (String element : list) {\r\nSystem.out.println(element);\r\n}\r\n<\/code><\/pre>\n
                    \n
                  1. \u4ed6\u306e\u3088\u304f\u4f7f\u308f\u308c\u308b\u64cd\u4f5c:<\/li>\n<\/ol>\n
                      \n
                    1. ArrayList\u306esize()\u30e1\u30bd\u30c3\u30c9\u3067ArrayList\u5185\u306e\u30a8\u30ec\u30e1\u30f3\u30c8\u306e\u6570\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/li>\n
                    2. ArrayList\u306eisEmpty\u30e1\u30bd\u30c3\u30c9\u306f\u3001ArrayList\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3057\u307e\u3059\u3002<\/li>\n
                    3. ArrayList \u306e clear() \u30e1\u30bd\u30c3\u30c9\u306f\u3001ArrayList \u304b\u3089\u5168\u3066\u306e\u8981\u7d20\u3092\u524a\u9664\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n
                        \n
                      1. \u6027\u80fd\u3092\u8003\u616e\u3057\u3066<\/li>\n<\/ol>\n
                          \n
                        1. ArrayList\u306e\u633f\u5165\u3084\u524a\u9664\u306fLinkedList\u3088\u308a\u3082\u6027\u80fd\u304c\u60aa\u3044\u3002\u5185\u90e8\u914d\u5217\u306e\u8abf\u6574\u3092\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3060\u3002<\/li>\n
                        2. ArrayList\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3067\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u306b\u3088\u308aLinkedList\u3088\u308a\u3082\u8981\u7d20\u3078\u306e\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9\u6027\u80fd\u306b\u512a\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n
                          ArrayList \u3068\u306f Java Collection Framework \u306b\u304a\u3051\u308b\u52d5\u7684\u914d\u5217\u3067\u3042\u308a\u3001\u3042\u3089\u3086\u308b\u578b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u683c\u7d0d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002ArrayList \u306f add\u3001get\u3001modification\u3001remove \u306a\u3069\u3001\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5185\u306e\u8981\u7d20\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306e\u3055\u307e\u3056\u307e\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u63d0\u4f9b\u3059\u308b\u3002ArrayList \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u3001\u8981\u7d20\u306e\u633f\u5165\u3001\u524a\u9664\u3001\u304a\u3088\u3073\u30e9\u30f3\u30c0\u30e0\u30a2\u30af\u30bb\u30b9\u3068\u3044\u3063\u305f\u64cd\u4f5c\u306b\u3088\u3063\u3066\u6c7a\u307e\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                          Java\u306eArrayList\u306fJava\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e1\u3064\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u306e\u683c\u7d0d\u3068\u64cd\u4f5c\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 \u57fa\u672c\u6982\u5ff5: ArrayList\u306f\u52d5\u7684\u914d\u5217\u3067\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u81ea\u52d5\u7684\u306b\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-131970","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava ArrayList\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u5b8c\u5168\u30ac\u30a4\u30c9 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/java-arraylist\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u5b8c\u5168\u30ac\u30a4\u30c9\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java ArrayList\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u5b8c\u5168\u30ac\u30a4\u30c9\" \/>\n<meta property=\"og:description\" content=\"Java\u306eArrayList\u306fJava\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e1\u3064\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u306e\u683c\u7d0d\u3068\u64cd\u4f5c\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 \u57fa\u672c\u6982\u5ff5: ArrayList\u306f\u52d5\u7684\u914d\u5217\u3067\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u81ea\u52d5\u7684\u306b\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java-arraylist\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\uff09\u5b8c\u5168\u30ac\u30a4\u30c9\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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