斗地主案例

package com.ahclg.casePoker;

import java.awt.font.FontRenderContext;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.TreeSet;

public class PorkerDemo {
    public static void main(String[] args) {
        //创建HashMap,键是编号，值是牌
        HashMap<Integer, String> hm = new HashMap<>();
        //创建ArrayList,存储编号
        ArrayList<Integer> al = new ArrayList<>();
        //定义花色
        String[] colors = {"♥", "♠", "♣", "♦"};
        //定义点数
        String[] numbers = {"3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "k", "A", "2",};
        //从0开始往HashMap里面存储编号，并存储对应的牌。同时往al里面存储编号
        int index = 0;
        for (String color : colors) {
            for (String number : numbers) {
                hm.put(index, color + number);
                al.add(index);
                index++;
            }
        }
        hm.put(index, "小王");
        al.add(index);
        index++;
        hm.put(index,"大王");
        al.add(index);
        //洗牌
        Collections.shuffle(al);
        //发牌(发的也是编号，为了保证编号是排序的，创建TreeSet集合接收)
        TreeSet<Integer> MaYunSet = new TreeSet<>();
        TreeSet<Integer> LiYanhongSet = new TreeSet<>();
        TreeSet<Integer> MaHuatengSet = new TreeSet<>();
        TreeSet<Integer> alDiPaiSet = new TreeSet<>();

        for (int i = 0; i < al.size(); i++) {
            Integer x = al.get(i);//al集合内存储的是0,1,2,3...53与x是一一对应的
            if (i >= al.size() - 3) {
                alDiPaiSet.add(x);
            } else if (i % 3 == 0) {
                MaYunSet.add(x);
            } else if (i % 3 == 1) {
                LiYanhongSet.add(x);
            } else if (i % 3 == 2) {
                MaHuatengSet.add(x);
            }
        }
        lookPoker("马云：", MaYunSet, hm);
        lookPoker("李彦宏：", LiYanhongSet,hm);
        lookPoker("马化腾：", MaHuatengSet,hm);
        lookPoker("底牌：", alDiPaiSet,hm);
    }

    //看牌的方法
    public static void lookPoker(String name, TreeSet<Integer> treeSet,HashMap<Integer, String> hm) {
        System.out.print(name);
        for (Integer key : treeSet){
            String poker = hm.get(key);
            System.out.print(poker + " ");
        }
        System.out.println();
    }
}

结果：

马云：♥7 ♥10 ♥A ♥2 ♠4 ♠9 ♠k ♠2 ♣3 ♣7 ♣9 ♣A ♦3 ♦5 ♦10 ♦Q ♦2
李彦宏：♥5 ♥6 ♥8 ♥Q ♠5 ♠6 ♠8 ♠A ♣k ♣2 ♦4 ♦6 ♦7 ♦8 ♦k ♦A 小王
马化腾：♥3 ♥J ♥k ♠3 ♠7 ♠10 ♠J ♠Q ♣4 ♣5 ♣6 ♣8 ♣10 ♣J ♦9 ♦J 大王
底牌：♥4 ♥9 ♣Q