数组内容为随机1~7，不重复

<pre name="code" class="java">package test;

public class test {
static int[] hanshu(int[] b,int n)
{
for(int i = n;n<b.length-1;n++)
{
b
= b[n+1];
//free(b[b.length]);
}
return b;}
public static void main(String[] agrs)
{
int[] arry = new int[7];
int[] a = new int[7];
int j;
for(int i = 0; i<7;i++)
{arry[i]=i;
//System.out.print(arry[i]+" ");
}
int m = 0;
int n =arry.length;
for(int i = 0; i<7;i++)
{
j = (int)(Math.random()*10%(n--));
System.out.print(j+" ");
a[m] =arry[j];
m++;
int[] b;
b = hanshu(arry,j);
}
System.out.println();
for(int i = 0 ;i<7;i++)
System.out.print(a[i]+" ");
}

}