java做一个猜拳游戏

好的，下面是一个简单的Java猜拳游戏示例：

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

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

        while (true) {
            System.out.println("请选择出拳的类型：1. 石头 2. 剪刀 3. 布");
            int player = scanner.nextInt();

            if (player < 1 || player > 3) {
                System.out.println("无效的选择，请重新输入！");
                continue;
            }

            int computer = random.nextInt(3) + 1;

            System.out.println("你出了：" + getType(player));
            System.out.println("电脑出了：" + getType(computer));

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

            System.out.println("是否继续游戏？(Y/N)");
            String answer = scanner.next();
            if ("N".equalsIgnoreCase(answer)) {
                break;
            }
        }
    }

    private static String getType(int type) {
        switch (type) {
            case 1:
                return "石头";
            case 2:
                return "剪刀";
            case 3:
                return "布";
            default:
                return "";
        }
    }
}

运行程序后，用户可以选择石头、剪刀或布。计算机会随机生成一个选项，然后比较双方的选择，输出胜负结果。用户可以选择继续游戏或退出。