Java:猜拳游戏

package game;
import java.util.Scanner;

public class Person {
    String name;
    int score;
    
    public Person() {
        
    }
    public Person(int score) {
        this.score = score;
    }
    
    // 1. 石头  2. 剪刀  3. 布
    int play() {
        System.out.println("请出拳:(1石头2剪刀3布)");
        Scanner sc = new Scanner(System.in);
        int num = sc.nextInt();
        switch (num) {
        case 1: {
            System.out.println(this.name + "出拳：石头") ;
            break;
        }
        case 2: {
            System.out.println(this.name + "出拳:剪刀");
            break;
        }
        default:
            System.out.println(this.name + "出拳:布");
            break;
        }
        return num;
    }   
}

package game;
import java.util.Random;

public class Computer {
    String name;
    int score;
    
    // 构造方法
      public Computer() { // 默认构造方法
        
     }
      public Computer (int score) {
        this.score = score;
    }
      
    // 出拳
    int play() {
        Random rand = new Random();
        // 1. 石头 2. 剪刀 3.布
        int num = rand.nextInt(3)+1;
        switch (num) {
        case 1: {
            System.out.println(this.name + "出拳：石头") ;
            break;
        }
        case 2: {
            System.out.println(this.name + "出拳:剪刀");
            break;
        }
        default:
            System.out.println(this.name + "出拳:布");
            break;
        }
        return num;
    }
}

package game;
import java.util.Scanner;

public class Memu {
    Computer computer;
    Person p;
    
    // 构造方法
    public Memu() {
        this.init();
    }
    // 初始化游戏
    void init() {
        // 创建机器对象
        this.computer = new Computer(0);
        System.out.println("请输入电脑的名字：");
        Scanner sc = new Scanner(System.in);
        this.computer.name = sc.next();
        
        // 创建一个人对象
        this.p = new Person(0);
        System.out.println("请输入你的名字：");
        this.p.name = sc.next();
    }

    // 开始游戏
    void start() {
        // 人先出拳
        int pNum = this.p.play();
        // 机器出拳
        int cNum = this.computer.play();
        // 计算分数
        this.calculate(pNum, cNum);
        System.out.println("游戏是否结束(exit)");
        Scanner sc = new Scanner(System.in);
        if ("exit".equals(sc.next())) {
            // 展示结果
            this.show();
            return;
        } else {
            start();
        }
    }

    // 计算分数  num : 人出拳的值   num1 机器出拳的值
    void calculate( int num, int num1) {
        if (num == num1) { // 平局
            System.out.println("平局");
            return;
        }
        if ((num == 1 && num1 == 2) || (num == 2 && num1 == 3) ||
                (num==3&&num1==1)) { // 人胜利
            System.out.println("人胜利");
            this.p.score++;
        } else { // 机器胜利
            System.out.println("机器胜利");
            this.computer.score++;
        }
    }

   // 展示结果
   void show() {
       System.out.println(this.p.name + "得分:" + this.p.score);
       System.out.println(this.computer.name + "得分:" +
       this.computer.score);
   } 
}

package game;

public class Test {
    public static void main(String[] args) {
        
        Memu memu = new Memu();
        memu.start();
    
    }

}