testsort.java

来自「用java编写的一些初级代码」· Java 代码 · 共 14 行

import java.util.*;
public class TestSort { 
    public static void main(String args[]){ 
	ArrayList al=new ArrayList();
	al.add(new Integer(1));
	al.add(new Integer(3));
	al.add(new Integer(2));
	System.out.println(al.toString());
	Collections.sort(al);
	System.out.println(al.toString());
    }
}