用Java做一个石头剪刀布三局两胜

在Java中制作一个石头剪刀布游戏的三局两胜版，首先需要定义一个GamePlayer类来表示玩家，包含选择手势的方法，然后创建一个ComputerPlayer类作为电脑对手，同样有随机出拳的功能。下面是一个简单的示例：

import java.util.Random;

enum Gesture {
    ROCK(0), SCISSORS(1), PAPER(2);
    
    int value;
    Gesture(int value) {
        this.value = value;
    }
}

class GamePlayer {
    public Gesture chooseGesture() {
        // 用户输入，这里简单地获取用户输入并转换成对应的手势
        return getValidGesture(System.console().readLine());
    }

    private Gesture getValidGesture(String input) {
        try {
            return Gesture.valueOf(input.toUpperCase());
        } catch (IllegalArgumentException e) {
            System.out.println("无效的选择，请输入 'rock', 'scissors', 或 'paper'!");
            return chooseGesture();
        }
    }
}

class ComputerPlayer {
    private Random random = new Random();

    public Gesture chooseGesture() {
        return Gesture.values()[random.nextInt(Gesture.values().length)];
    }
}

public class RockPaperScissors {
    public static void main(String[] args) {
        GamePlayer human = new GamePlayer();
        ComputerPlayer computer = new ComputerPlayer();
        
        int scoreHuman = 0;
        int scoreComputer = 0;
        
        for (int i = 1; i <= 6; i++) { // 三局两胜制
            System.out.println("第 " + i + " 局:");
            Gesture humanGesture = human.chooseGesture();
            Gesture computerGesture = computer.chooseGesture();
            
            System.out.println(humanGesture + " 对 " + computerGesture);

            if (compareHand Gestures(humanGesture, computerGesture)) {
                scoreHuman++;
                System.out.println("你赢了这局，当前比分: " + scoreHuman + ":" + scoreComputer);
            } else {
                scoreComputer++;
                System.out.println("电脑赢了这局，当前比分: " + scoreHuman + ":" + scoreComputer);
            }
            
            if (scoreHuman >= 2 || scoreComputer >= 2) {
                break;
            }
        }
    }
    
    private static boolean compareHand Gestures(Gesture gesture1, Gesture gesture2) {
        switch(gesture1) {
            case ROCK:
                return gesture2 == Gesture.PAPER;
            case SCISSORS:
                return gesture2 != Gesture.ROCK && gesture2 != Gesture.PAPER;
            case PAPER:
                return gesture2 == Gesture.ROCK;
            default:
                throw new IllegalArgumentException("未知的手势");
        }
    }
}