Java中利用随机数的猜拳游戏

　　Java中利用随机数的猜拳游戏，实现非常简单，重难点在于随机数的产生。

　　首先GameJude类是用于判断输赢的一个类：

 package testGame;

 public class GameJudge {
     private String marks1 = "拳头";
     private String marks2 = "拳头";
     private int personCout = 0;
     private int computerCout = 0;
     private int cout = 0;
     public void juge(int person, int computer) {
         switch (person) {
         case 1:
             marks1 = "石头";
             break;
         case 2:
             marks1 = "剪刀";
             break;
         case 3:
             marks1 = "布";
             break;
         case 4:
             System.out.println("用户赢"+this.personCout+"次\n电脑赢"+this.computerCout+"次\n平局"+this.cout+"次");
             return;
         }
         switch (computer) {
         case 1:
             marks2 = "石头";
             break;
         case 2:
             marks2 = "剪刀";
             break;
         case 3:
             marks2 = "布";
             break;
         }

         if (person == computer) {
             System.out.println("用户出" + marks1 + "\n电脑出" + marks2 + "\n结果：平局！");
             cout++;
         } else if ((person == 1 && computer == 2)|| (person == 2 && computer == 3)|| (person == 3 && computer == 1)) {
             System.out.println("用户出" + marks1 + "\n电脑出" + marks2 + "\n结果：用户赢！");
             personCout++;
         } else {
             System.out.println("用户出" + marks1 + "\n电脑出" + marks2 + "\n结果：电脑赢！");
             computerCout++;
         }
     }
 //    public void shouGameCout(){
 //        System.out.println("用户赢"+this.personCout+"次\n电脑赢"+this.computerCout+"次\n平局"+this.cout+"次");
 //    }
 }

　　接下TestGame类是一个启动类，显示输入输出，退出统计游戏结果：

 package testGame;

 import java.util.Scanner;
 import java.util.Random;
 public class TestGame {

     /**
      * @param 显示输入输出，推出时统计游戏结果
      */
     public static void main(String[] args) {
         // TODO Auto-generated method stub
         Scanner sc = new Scanner(System.in);
         Random r = new Random();
         GameJudge g = new GameJudge();
         int person = 0;
         while (person != 4) {
             System.out.println("------------------猜拳游戏------------------");
             System.out.println("请出拳（1、石头；2、剪刀；3、布；4、退出）");
             person = sc.nextInt();
             if( person == 1 || person == 2 || person == 3 || person == 4){
                 int computer = r.nextInt(3)+1;
                 g.juge(person, computer);
             }else{
                 System.out.println("输入有误，请重新输入");
                 continue;
             }
         }
     }
 }

这个游戏我曾经写过几次，后来做了一些小的改动以满足作业的要求，主要用的就是随机数的产生和if条件语句，哈哈^_^。

加油！！！