Jaa之产生随机数!...

import java.util.Random;


 public class WindowOnTop {
     
     public static void main(String[] args) {  
     Random random =new Random();
     for(int i=1;i<11;i++){
     int n =random.nextInt(20); //产生0到20之间的随机数
     System.out.println("第"+i+"次产生的随机数为:"+n+"\t2011.12.03 Saturday by friendan!\n");
     }
}
 }