自己写过的代码之人机对战猜拳

老师给的源代码如下，共以后复习参考：

电脑：

import java.util.Random;

public class Computer {
    private String name;
    private int score;
    public Computer(String name){
        this.name = name;
        score = 0;
    }

    public String fistComputer(){
        Random random = new Random();
        int num = random.nextInt(3);
        String fist;
        if(num == 0){
            fist = "石头";
        }else if(num == 1){
            fist ="剪刀";
        }else{
            fist = "布";
        }
        return fist;
    }

    public void addScore(int score){
        this.score += score;
    }
    public String getName(){
        return name;
    }
    public int getScore(){
        return score;
    }
}

人手动输入石头剪刀布

import java.util.Scanner;

public class People {
    private String name;
    private int score;
    public People(String name){
        this.name = name;
        score = 0;
    }

    public String fistPeople(){
        System.out.println("石头  剪刀  布");
        System.out.println("Jamie出：");
        Scanner scanner = new Scanner(System.in);
        String fist = scanner.next();
        return fist;
    }

    public void addScore(int score){
        this.score += score;
    }
    public String getName(){
        return name;
    }
    public int getScore(){
        return score;
    }
}

游戏规则

import java.util.Scanner;

public class Game {
    private Computer computer;
    private People people;
    public Game(){
        people = new People("Jamie");
        computer= new Computer("lisi");
    }


    public void judge(String fistPeople,String fistComputer){
        if(fistPeople.equals("石头") &&fistComputer.equals("剪刀") ||
                fistPeople.equals("剪刀")&&fistComputer.equals("布") ||
                fistPeople.equals("布")&&fistComputer.equals("石头") ){
            System.out.println(people.getName() + "胜利");
            people.addScore(1);
        }else if(fistPeople.equals(fistComputer)){
            System.out.println("平局！不得分");
        }else{
            System.out.println(computer.getName() + "胜利！");
            computer.addScore(1);
        }
    }

    private void judgeThree(){
        if(people.getScore() == computer.getScore()){
            System.out.println("平局啦");
            System.out.println(people.getName()+":"+computer.getName()+
                    "="+people.getScore()+":"+computer.getScore());
        }else if(people.getScore() > computer.getScore()){
            System.out.println(people.getName() + "胜利！");
            System.out.println(people.getName()+":"+computer.getName()+
                    "="+people.getScore()+":"+computer.getScore());
        }else{
            System.out.println(computer.getName() + "胜利！");
            System.out.println(people.getName()+":"+computer.getName()+
                    "="+people.getScore()+":"+computer.getScore());
        }
    }

    public void start(){
        boolean flag = true;
        while(flag){
        System.out.println("游戏开始！");
        Scanner scanner = new Scanner(System.in);
        int count = 0;
        while(count<3){
            System.out.println("请出拳！");
            String fistPeople = people.fistPeople();
            String fistComputer = computer.fistComputer();
            System.out.println("对方出："+fistComputer);

            judge(fistPeople,fistComputer);
            count++;
        }
        judgeThree();
        System.out.println("是否继续游戏：是，否");
        String string = scanner.next();
        if(string.equals("否")){
            flag = false;
        }
        }
    }
}

测试方法

public class main {
    public static void main(String[] args) {
        Game game = new Game();
        game.start();
    }
}