简单的java猜拳示例

所有的语言实现起来都是类似的

import java.util.Scanner;

public class caiquan {

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

        String[] r = {
"石头", "剪刀", "布"}
    ;
    
        int computerChoice = (int) (Math.random() * 3);
     // 随机生成计算机出拳

        System.out.println("石头剪刀布游戏开始！");
    
        System.out.println("请出拳：0 - 石头，1 - 剪刀，2 - 布");
    
        int userChoice = scanner.nextInt();
    

        if (userChoice  0 || userChoice >
 2) {
    
            System.out.println("无效的输入，请输入0、1或2。");
    
            return;

        }
    

        System.out.println("你出了：" + r[userChoice]);
    
        System.out.println("我出了：" + r[computerChoice]);


        if (userChoice == computerChoice) {
    
            System.out.println("平局！");

        }
     else if (userChoice == 0 &
    &
     computerChoice == 1
                || userChoice == 1 &
    &
     computerChoice == 2
                || userChoice == 2 &
    &
 computerChoice == 0) {
    
            System.out.println("你赢了！");

        }
 else {
    
            System.out.println("你输了！");

        }

    }

}
    

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