猜拳游戏代码java

猜拳游戏的Java代码示例如下：

import java.util.Random;
import java.util.Scanner;

public class RockPaperScissors {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Random rand = new Random();

        System.out.println("猜拳游戏开始！请出拳：");
        System.out.println("1. 石头");
        System.out.println("2. 剪刀");
        System.out.println("3. 布");
        
        int playerChoice = scanner.nextInt();
        int computerChoice = rand.nextInt(3) + 1;

        System.out.println("你选择了：" + getPlayerChoice(playerChoice));
        System.out.println("电脑选择了：" + getPlayerChoice(computerChoice));

        if (playerChoice == computerChoice) {
            System.out.println("平局！");
        } else if ((playerChoice == 1 && computerChoice == 2) ||
                   (playerChoice == 2 && computerChoice == 3) ||
                   (playerChoice == 3 && computerChoice == 1)) {
            System.out.println("你赢了！");
        } else {
            System.out.println("你输了！");
        }
    }

    public static String getPlayerChoice(int choice) {
        switch (choice) {
            case 1:
                return "石头";
            case 2:
                return "剪刀";
            case 3:
                return "布";
            default:
                return "无效选择";
        }
    }
}