产生1～9无重复随机数

import java.util.*;   
public class Randoms {   
       
    public static void main(String[] args) {   
           
        int [] seed = {1,2,3,4,5,6,7,8,9};   
        int [] ranArr = new int [9];   
        Random ran = new Random();   
        for(int i = 0 ; i<seed.length ; i++){   
            int j = ran.nextInt(seed.length-i);   
            ranArr [i] = seed [j];   
            seed [j] = seed [seed.length-1-i];   
            System.out.println ("ranArr[" + i + "]" + ":" + ranArr[i]);   
        }   
    }   
}