ArrayList绫讳腑鏈変竴涓猻ort()鏂规硶鍙互瀵瑰垪琛ㄤ腑鐨勫厓绱犺繘琛屾帓搴忋€傝鏂规硶浣跨敤榛樿鐨勮嚜鐒舵帓搴忥紙鍗虫寜鍏冪礌鐨勮嚜鐒堕『搴忚繘琛屾帓搴忥級鏉ュ鍏冪礌杩涜鎺掑簭銆?/p>

浠ヤ笅鏄娇鐢╯ort()鏂规硶瀵笰rrayList杩涜鎺掑簭鐨勭ず渚嬶細

import java.util.ArrayList;
import java.util.Collections;
public class Main {
public static void main(String[] args) {
ArrayList<Integer> numbers = new ArrayList<>();
numbers.add(5);
numbers.add(2);
numbers.add(9);
numbers.add(1);
System.out.println("鎺掑簭鍓嶏細" + numbers);
Collections.sort(numbers);
System.out.println("鎺掑簭鍚庯細" + numbers);
}
}

杈撳嚭缁撴灉锛?/p>

鎺掑簭鍓嶏細[5, 2, 9, 1]
鎺掑簭鍚庯細[1, 2, 5, 9]

杩欓噷棣栧厛鍒涘缓涓€涓狝rrayList瀵硅薄numbers锛屽苟鍚戝叾娣诲姞涓€浜涙暣鏁般€傜劧鍚庝娇鐢–ollections绫荤殑sort()鏂规硶瀵筺umbers杩涜鎺掑簭銆傛渶鍚庤緭鍑烘帓搴忓悗鐨凙rrayList銆?/p>