剪刀石头布java用while循环语句

剪刀石头布游戏通常可以用Java的while循环来实现基本的交互流程。以下是一个简单的例子，它展示了如何通过用户输入和随机生成电脑选择来进行游戏：

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

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

        System.out.println("欢迎来到剪刀石头布游戏！请输入你的选择 (1 石头, 2 布, 3 剪刀):");

        while (true) {
            int playerChoice = scanner.nextInt() - 1; // 将1、2、3转换为0、1、2
            int computerChoice = random.nextInt(3); // 电脑的选择范围从0到2

            if (playerChoice == computerChoice) {
                System.out.println("平局，双方都选择了" + (playerChoice + 1));
            } else if ((playerChoice == 0 && computerChoice == 2) || 
                       (playerChoice == 1 && computerChoice == 0) ||
                       (playerChoice == 2 && computerChoice == 1)) {
                System.out.println("你赢了！电脑出了" + (computerChoice + 1) + "，" + (playerChoice + 1) + "胜过");
            } else {
                System.out.println("你输了！电脑出了" + (computerChoice + 1) + ", 而你出的是" + (playerChoice + 1));
            }

            System.out.print("再来一局吗？请输入Y继续(N结束): ");
            String playAgain = scanner.nextLine().toLowerCase();
            if (!playAgain.equals("y")) {
                break;
            }
        }
        scanner.close();
    }
}