简易扑克牌游戏-弥补初学时的遗憾。

改编版，玩法不一样。

账号密码admin

User类

package poker;

public class User {
    private String username;

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }
}

Card类

package poker;

import java.util.ArrayList;
import java.util.List;

public class Card {

    public String suit; //花色
    public String cardNum; //点数
    public String[] suits = new String[]{"红桃", "梅花", "方块", "红心"}; //花色集合
    public String[] cardNums = new String[]{"2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"}; //点数集合

    @Override
    public String toString() {
        return suit + cardNum;
    }

    public Card() {

    }

    public Card(String suit, String cardNum) {
        this.suit = suit;
        this.cardNum = cardNum;
    }

    public static List<Card> sendCard() {
        List<Card> allCards = new ArrayList<>();
        Card card = new Card();
        for (int i = 0; i < card.suits.length; i++) {
            for (int j = 0; j < card.cardNums.length; j++) {
                allCards.add(new Card(card.suits[i], card.cardNums[j]));
            }
        }
        return allCards;
    }

    public static Boolean compare(List<Card> yourcardList, List<Card> competitorCardList) {
        int youCount = 0;
        int competitorCount = 0;
                for (Card card : yourcardList) {
            String cardNum = card.cardNum;
            switch (cardNum) {
                case "J":
                    cardNum = "10";
                    break;
                case "Q":
                    cardNum = "11";
                    break;
                case "K":
                    cardNum = "12";
                    break;
                case "A":
                    cardNum = "13";
                    break;
            }
            youCount += Integer.parseInt(cardNum);
        }

        for (Card card : competitorCardList) {
            String cardNum = card.cardNum;
            switch (cardNum) {
                case "J":
                    cardNum = "10";
                    break;
                case "Q":
                    cardNum = "11";
                    break;
                case "K":
                    cardNum = "12";
                    break;
                case "A":
                    cardNum = "13";
                    break;
            }
            competitorCount += Integer.parseInt(cardNum);
        }

        System.out.println("您的点数之和是" + youCount);
        System.out.println("对手的点数之和是" + competitorCount);
        if (youCount > competitorCount) {
            return true;
        } else {
            return false;
        }
    }
}

开始游戏类

package poker;

import java.util.*;

public class GameStart {

    public static void main(String[] args) {
        int loginResult = login();
        while (loginResult == 0) {
            loginResult = login();
            if (loginResult == 1) {
                break;
            }
        }
        User yourself = new User(); //实例化一个自己的对象。
        User competitor = new User(); //实例化一个竞争者对象。
        System.out.println("===================================请输入您的姓名===================================");
        Scanner sc = new Scanner(System.in);
        yourself.setUsername(sc.nextLine()); //设定自己的名字
        System.out.println("欢迎您，玩家：" + yourself.getUsername() + "！");
        System.out.println("===================================请输入竞争者的姓名===================================");
        competitor.setUsername(sc.nextLine()); //设定竞争者的名字
        System.out.println("您的竞争对手设定为：" + competitor.getUsername() + "！");

        System.out.println("===================================开始发牌：===================================");
        List<Card> allCards = Card.sendCard();
        System.out.print("牌已发完：");
        System.out.println(allCards);
        Collections.shuffle(allCards); //打乱顺序
        System.out.println("===================================洗牌完毕===================================");

        Boolean tag = true;
        List<Card> cardList = new ArrayList<>();
        while (true) {
            try {
                System.out.println("请抽第一张卡，输入1-52中的任意数字：");
                Card firstCard = allCards.get(Integer.parseInt(sc.nextLine()) - 1); //这样如果输入字符串 抛出的是NumberFormatException 不会无限循环。
                cardList.add(firstCard);
                System.out.println("您抽的第一张卡是:" + firstCard);

                System.out.println("请抽第二张卡，输入1-52中的任意数字：");
                Card secondCard = allCards.get(Integer.parseInt(sc.nextLine()) - 1);
                cardList.add(secondCard);
                System.out.println("您抽的第二张卡是:" + secondCard);

                System.out.println("请抽第三张卡，输入1-52中的任意数字：");
                Card thirdCard = allCards.get(Integer.parseInt(sc.nextLine()) - 1);
                cardList.add(thirdCard);
                System.out.println("您抽的第三张卡是:" + thirdCard);
                System.out.println("您抽取的三张卡分别是" + cardList);
                break;
            } catch (Exception e) {
                System.out.println("请重新输入");
                cardList.clear();
                continue;
            }
        }

        //竞争对手抽牌
        List<Card> competitorCardList = new ArrayList<>();
        competitorCardList.add(allCards.get(new Random().nextInt(51) + 1));
        competitorCardList.add(allCards.get(new Random().nextInt(51) + 1));
        competitorCardList.add(allCards.get(new Random().nextInt(51) + 1));
        System.out.println(competitor.getUsername() + "的牌分别是" + competitorCardList);

        if (Card.compare(cardList, competitorCardList)) {
            System.out.println("您获胜了");
        } else {
            System.out.println("您输了，再接再厉！");
        }
        ;

    }

    public static int login() {
        System.out.println("===================================欢迎来到勇者斗恶龙赌场！！===================================");
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入账号");
        String username = sc.nextLine();
        while ((username.trim()).equals("")) {
            System.out.println("账号不能为空，请输入账号");
            username = sc.nextLine();
        }
        System.out.println("请输入密码");
        String password = sc.nextLine();
        while ((password.trim()).equals("")) {
            System.out.println("密码不能为空，请输入账号");
            password = sc.nextLine();
        }
        if (username.equals("admin") && password.equals("admin")) {
            System.out.println("登录成功");
            return 1;
        } else {
            System.out.println("登录失败");
            return 0;
        }
    }
}