锘?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
銆銆嫻庡崡杞歡寮鍙?/strong>ArrayList鐢ㄦ硶錛?/span>
銆銆ArrayList鏄帴鍙ist鐨勫疄鐜扮被錛屾墍浠ユ帹鑽愪互List鎺ュ彛鏉ヤ嬌鐢ㄣ?/span>
銆銆1銆佸垱寤篈rrayList鐨凩ist鎺ュ彛
銆銆渚嬶細
銆銆List books = new ArrayList錛堬級;
銆銆Java鏀寔娉涘艦鍚庯紝鍒涘緩鐨勫悓鏃跺彲浠ユ寚瀹氬厓绱犵殑綾誨瀷銆?/span>
銆銆渚嬶細
銆銆Class Book {
銆銆......
銆銆}
銆銆List<Book> books = new ArrayList<Book>錛堬級;
銆銆涓洪伩鍏嶅鍣ㄨ嚜鍔ㄦ墿瀹圭殑嬈℃暟鑰屽獎鍝嶆ц兘錛屽彲浠ユ寚瀹氬垱寤烘椂鐨勫厓绱犲ぇ灝忋?/span>
銆銆渚嬶細 鍒涘緩鍙綰?00涓狟ook瀵硅薄鐨凙rrayList錛岃秴榪?00涓皢鑷姩鎵╁
銆銆List<Book> books = new ArrayList<Book>錛?00錛?
銆銆2銆佹坊鍔犲厓绱?/span>
銆銆娣誨姞鍦ㄦ湯灝?/span>
銆銆渚嬶細
銆銆Book book1 = new Book錛堬級;
銆銆Book book2 = new Book錛堬級;
銆銆Book book3 = new Book錛堬級;
銆銆books.add錛坆ook1錛?
銆銆books.add錛坆ook2錛?
銆銆books.add錛坆ook3錛?
銆銆娣誨姞鍦ㄦ寚瀹氱儲寮曞
銆銆渚嬶細
銆銆// 铏界劧鍔燽ook1鍚庣洿鎺ュ姞book3浜嗭紝浣哹ook2鏄鍔犲湪绱㈠紩1鐨勫湴鏂?/span>
銆銆// 鎵浠ユ晥鏋滃悓涓婏紝鏄痓ook1銆乥ook2銆乥ook3鐨勯『搴?/span>
銆銆books.add錛坆ook1錛?
銆銆books.add錛坆ook3錛?
銆銆books.add錛?錛?book2錛?
銆銆3銆?鑾峰彇ArrayList涓厓绱犵殑涓暟
銆銆渚嬶細
銆銆int count = books.size錛堬級;
銆銆4銆佽鍙栧厓绱?/span>
銆銆鍒╃敤鏅氱殑for寰幆錛?/span>
銆銆渚嬶細
銆銆for 錛坕nt i = 0; i < books.size錛堬級; i++ {
銆銆Book newBook = books.get錛坕錛?
銆銆// 涓嶅甫娉涘艦鐨勬敞鎰忚杞瀷
銆銆Book book = 錛圔ook錛?books.get錛坕錛?
銆銆System.out.println錛坆ook.getName錛堬級錛?
銆銆}