java不重複亂數1~10,並將亂數出的數由小到大排序

零售商

1. import java.util.Arrays;
   
2. public class Test01_0224 {
   
3. public static void main(String[] args) {
   
4. int [] intA = new int[11];
   
5. int temp,temp2,gn = 5;
   
6. for (int i = 1 ; i < intA.length ; i++)
   
7.     intA[i] = i;
   
8. for(int i = 1 ; i <= gn ; i++){
   
9.     temp = (int)(Math.random() * (intA.length-i) + i);
   
10.     temp2 = intA[i];
    
11.     intA[i] = intA[temp];
    
12.     intA[temp] = temp2;
    
13. }
    
14. for(int i = gn + 1; i < intA.length ; i++)
    
15.     intA[i] = intA.length;
    
16. Arrays.sort(intA);
    
17. for(int i = 1 ; i <= gn ; i++)
    
18.     System.out.print(intA[i] + ",");
    
19.     }
    
20. }

複製代碼