java實現簡單猜拳小遊戲

import java.util.Scanner;
public class User {
    String name;
    int score;
    public int showFist(){
        System.out.println ("請出拳：1.剪刀\t2.石頭\t3.佈");
        Scanner input=new Scanner ( System.in );
        int choice=input.nextInt ();
        if(choice==1){
            System.out.println ("您出瞭剪刀");
        }else if(choice==2){
            System.out.println ("您出瞭石頭");
        }else if (choice==3){
            System.out.println ("您出瞭佈");
        }else {
            System.out.println ("輸入有誤！");
        }
        return choice;
    }
}

public class Computer {
    String name;
    int score;

    public int showFist () {
        int choice = (int) (Math.random () * 3) + 1;    //產生隨機數
        if (choice == 1) {
            System.out.println (name +"出瞭剪刀" );
        } else if (choice == 2) {
            System.out.println (name +"出瞭石頭" );
        } else if (choice == 3) {
            System.out.println (name +"您出瞭佈" );
        } else {
            System.out.println ( "輸入有誤！" );
        }
        return choice;
    }
}

import java.util.Scanner;

public class Game {
    User user;  //用戶
    Computer computer;  //計算機
    int count;  //記錄對戰次數

    //初始化：設置自己的名字   對手的名字，積分0
    public void init(){
        System.out.println ("請輸入自己的名字");
        Scanner input = new Scanner ( System.in );
        String name = input.next ();
        user=new User ();   //對象初始化
        user.name=name;
        user.score=0;
        System.out.println ("請選擇你的對手：\n1.張三\t2.李四\t3.王五");
        int choice = input.nextInt ();
        computer=new Computer ();   //對象初始化
        computer.score=0;
        switch (choice){
            case 1:
                computer.name="張三";
            case 2:
                computer.name="李四";
            case 3:
                computer.name="王五";
                break;
            default:
                System.out.println ("輸入有誤！");
        }
        System.out.println ("你選擇與TA對戰："+computer.name);
    }

    public void start() {
        init ();
        Scanner input=new Scanner ( System.in );
        String isContinue = null;
        do {
            int userFist = user.showFist ();              //人出拳
            int chomputerFist = computer.showFist ();     //計算機出拳
            calcResult ( userFist, chomputerFist );
            System.out.println ("是否繼續？y(繼續)/其他(結束)");
            isContinue=input.next ();
        }while ("y".equals ( isContinue ));
         showResult (user,computer);    //顯示最終結果
    }
    //計算每一輪的結果
    public void calcResult(int userFist,int computerFist){
        //"1.剪刀\t2.石頭\t3.佈"
        if((userFist==1&&computerFist==3)||(userFist==2&&computerFist==1)||(userFist==3&&computerFist==2)){
            System.out.println ("您贏瞭");
            user.score++;
        }else if((userFist==3&&computerFist==1)||(userFist==1&&computerFist==2)||(userFist==2&&computerFist==3)){
            System.out.println ("您輸瞭");
            computer.score++;
        }else {
            System.out.println ("您平局");
        }


    }
    //計算最終結果
    public void showResult(User user,Computer computer){
        System.out.println (user.name +"\t" +user.score );
        System.out.println (computer.name +"\t" +computer.score);
        if (user.score>computer.score){
            System.out.println ("恭喜，獲得瞭最終的勝利");
        }else if (user.score<computer.score){
            System.out.println ("很遺憾你輸瞭");
        }else {
            System.out.println ("最終平局...");
        }

    }

    public static void main ( String[] args ) {
        Game game = new Game ();
        game.start ();
    }
}