JAVA简单猜拳游戏(二)

接着（一）

我们同样建立电脑类，但是电脑人出拳是随机的，所以，我们需要采用自动生成随机数的方法来生成的拳头、剪刀、包袱所对应的

三个数码。

这就到了位于java.util包中的Random类

Code:

import java.util.Random;   

  

public class Computer   

{   

                      String name = "小怪兽";   

                      int count = 0;   

  

                      public int showFist()   

                    {   

                                 Random obj = new Random();   

  

                                 //利用Random类的nextInt()方法生成0-2之间的数   

              int number = obj.nextInt(3) + 1;   

  

                                 switch(number)   

                                {   

                                           case 1:   

                                                         System.out.println(this.name + "出:拳头");   

                                                         break;   

                                           case 2:   

                                                         System.out.println(this.name + "出:剪刀");   

                                                         break;   

                                           case 3:   

                                                         System.out.println(this.name + "出:包袱");   

                                                         break;    

                                }     

                                   

                                return number;   

                    }   

}