java实现扑克牌游戏（洗牌，发牌，排序）

package poker.bean;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

import java.lang.annotation.ElementType;
import java.util.*;

/**
 * @Author:Liku
 * @Date:2022/11/26-14:05
 * @Name:JavaSE
 * @Since:jdk1.8
 * @Description:
 */
@Setter
@Getter
public class Poker {

    private Poker() {
    }

    public static void allPoker() {
        String[] color = {"♠", "♥", "♦", "♣"};
        String[] num = {"3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A", "2"};
        Map<Integer, String> pokers = new HashMap<>();
        List<Integer> keyList = new ArrayList<>();
        int index = 0;
        //外层循环数字，内层循环花色，这样能保证k值跟牌面值相匹配
        for (String s : num) {//外层循环数字
            for (String s1 : color) {//内层加上颜色
                pokers.put(index, s1 + s);
                keyList.add(index++);
            }
        }
        pokers.put(index, "♚");
        keyList.add(index++);
        pokers.put(index, "♔");
        keyList.add(index);
        Collections.shuffle(keyList);//打乱扑克牌下标序号，并且分配每个玩家的key值
        List<Integer> player1 = new ArrayList<>(17);
        List<Integer> player2 = new ArrayList<>(17);
        List<Integer> player3 = new ArrayList<>(17);
        List<Integer> dzPlay = new ArrayList<>(3);
        //给每个人发牌
        for (int i = 0; i < keyList.size(); i++) {
            if (i >= keyList.size() - 3) {
                dzPlay.add(keyList.get(i));
            } else if (i % 3 == 1) player1.add(keyList.get(i));
            else if (i % 3 == 2) player2.add(keyList.get(i));
            else if (i % 3 == 0) player3.add(keyList.get(i));

        }
        //将各位玩家的手牌排序
        Collections.sort(player1);
        Collections.sort(player2);
        Collections.sort(player3);
        Collections.sort(dzPlay);
        //创建玩家的list来装牌
        List<String> poker1 = new ArrayList<>();
        List<String> poker2 = new ArrayList<>();
        List<String> poker3 = new ArrayList<>();
        List<String> dzPoker = new ArrayList<>();
        //排完序根据key值，将扑克牌的value给玩家
        for (Integer integer : player1) {
            poker1.add(pokers.get(integer));
        }
        for (Integer integer : player2) {
            poker2.add(pokers.get(integer));
        }
        for (Integer integer : player3) {
            poker3.add(pokers.get(integer));
        }
        for (Integer integer : dzPlay) {
            dzPoker.add(pokers.get(integer));
        }
        System.out.println(poker1);
        System.out.println(poker2);
        System.out.println(poker3);
        System.out.println(dzPoker);
    }

    public static void main(String[] args) {
        allPoker();
    }
}

结果展示：

方法二：因为treeset有自动排序功能

private static void playCard() {
        String[] num = {"3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A", "2"};
        String[] color = {"♠", "♥", "♦", "♣"};
        Map<Integer, String> cardMap = new HashMap<>();
        List<Integer> keyList = new ArrayList<>();
        int index = 0;//将52张牌编号
        for (String s : num) {
            for (String s1 : color) {
                cardMap.put(index, s1 + s);
                keyList.add(index++);
            }
        }
        cardMap.put(index, "♔");
        keyList.add(index++);
        cardMap.put(index, "♚");
        keyList.add(index);
        Collections.shuffle(keyList);
        TreeSet<Integer> player01 = new TreeSet<Integer>();
        TreeSet<Integer> player02 = new TreeSet<Integer>();
        TreeSet<Integer> player03 = new TreeSet<Integer>();
        TreeSet<Integer> dipai = new TreeSet<Integer>();
        for (int i = 0; i < keyList.size(); i++) {
            if (i >= keyList.size() - 3) {
                dipai.add(keyList.get(i));
            } else if (i % 3 == 1) player01.add(keyList.get(i));
            else if (i % 3 == 2) player02.add(keyList.get(i));
            else if (i % 3 == 0) player03.add(keyList.get(i));
        }
        List<String> poker1 = new ArrayList<>();
        List<String> poker2 = new ArrayList<>();
        List<String> poker3 = new ArrayList<>();
        List<String> dzPoker = new ArrayList<>();
        for (Integer integer : player01) {
            poker1.add(cardMap.get(integer));
        }for (Integer integer : player02) {
            poker2.add(cardMap.get(integer));
        }
        for (Integer integer : player03) {
            poker3.add(cardMap.get(integer));
        }
        for (Integer integer : dipai) {
            dzPoker.add(cardMap.get(integer));
        }
        System.out.println(poker1);
        System.out.println(poker2);
        System.out.println(poker3);
        System.out.println(dzPoker);

    }