Java中从一个数组中随机产生不重复的数

import java.util.HashSet;
import java.util.Random;
import java.util.Set;

/**
 * @author Administrator
 *
 */
public class ArrayRandomNumber {

	/**
	 * @param args
	 */
	public static void main(String[] args) 
	{
		String[] s1=new String[]{"1","2","3","4","5","6","7","8","9","0"};
		String[] s2=new String[10]; 
		int index=0;
		Random random=new Random();
		for (int i = 0; i < s1.length; i++)
		{
			//随机产生一个数
			index=random.nextInt(s1.length-i);
			for (int j = 0; j < s2.length; j++) 
			{
				if(s2[j]!=s1[index])
				{
					s2[i]=s1[index];
				}
			}
			//s1数组向前移动一个
			for (int j = index; j < s1.length-i-1; j++) 
			{
				s1[j]=s1[j+1];
			}
		}
		
		for (String string : s2) 
		{
			System.out.print(string+" ");
		}
		
//		 Set<String> set=new HashSet<String>();  
//	        for (String string : s2) {  
//	            System.out.print(string+" ");  
//	            set.add(string);  
//	        }  
//	        System.out.println();  
//	        System.out.println(set+","+set.size());  
	}

}