模拟摇奖：从1-36中随机抽出8个不重复的数字

 1         Random ran=new Random();
 2         int [] a=new int [8];
 3         for(int i=0;i<8;i++)
 4         {
 5             a[i]=ran.nextInt(35);
 6                     for(int j=0;j<i;j++)
 7                     {if(a[i]==a[j])
 8                     {
 9                         i--;
10                         break;
11                     }
12
13             }
14                     System.out.println(a[0]);
15                     System.out.println(a[1]);
16                     System.out.println(a[2]);
17                     System.out.println(a[3]);
18                     System.out.println(a[4]);
19                     System.out.println(a[5]);
20                     System.out.println(a[6]);
21                     System.out.println(a[7]);
22         }
23