Java小游戏

Java猜数小游戏：

public class RockPaperScissors {
 
    public static void main(String[] args) {
        // 游戏循环
        while (true) {
            int playerMove = getPlayerMove();
            int computerMove = getComputerMove();
            int result = determineWinner(playerMove, computerMove);
            displayResult(result);
            if (!playAgain()) {
                break;
            }
        }
    }
 
    // 获取玩家的行动
    public static int getPlayerMove() {
        System.out.println("0. 石头\n1. 布\n2. 剪刀");
        Scanner scanner = new Scanner(System.in);
        int move = scanner.nextInt();
        return move;
    }
 
    // 获取电脑的随机行动
    public static int getComputerMove() {
        Random random = new Random();
        int move = random.nextInt(3);
        return move;
    }
 
    // 确定胜者
    public static int determineWinner(int playerMove, int computerMove) {
        if ((playerMove == 0 && computerMove == 1) ||
            (playerMove == 1 && computerMove == 2) ||
            (playerMove == 2 && computerMove == 0)) {
            return 1; // 玩家获胜
        } else if (playerMove == computerMove) {
            return 2; // 平局
        } else {
            return 0; // 电脑获胜
        }
    }
 
    // 显示结果
    public static void displayResult(int result) {
        switch (result) {
            case 0:
                System.out.println("电脑获胜！");
                break;
            case 1:
                System.out.println("玩家获胜！");
                break;
            case 2:
                System.out.println("平局！");
                break;
        }
    }
 
    // 询问玩家是否要再玩一轮
    public static boolean playAgain() {
        System.out.println("你想再玩一轮吗？(y/n)");
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        return input.equalsIgnoreCase("y");
    }
}