java集合模拟实现斗地主洗牌和发牌

package com.study_01;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/*
 * 模拟斗地主洗牌和发牌
 * 分析步骤：
 * 1：创建一个集合来存储牌
 * 2：洗牌
 * 3：发牌
 * 4：看牌
 * 
 */
public class Poker1 {
    public static void main(String[] args) {
        //创建一个集合来存牌
        ArrayList <String> Pokers=new ArrayList<>();
        String[] colors={"♠","♥","♦","♣"};
        String[] numbers={"3","4","5","6","7","8","9","10","J","Q","K","A","2"};
        for(String color:colors){
            for(String number:numbers){
                Pokers.add(color+number);   
            }
            Pokers.add("大王");
            Pokers.add("小王");
        }//洗牌
        Collections.shuffle(Pokers);
        //发牌
        /*创建四个集合来存储
         * 1：张三
         * 2：李四
         * 3:王麻
         * 4：底牌
         */
        ArrayList<String> Zhangsan=new ArrayList<>();
        ArrayList<String> Lisi=new ArrayList<>();
        ArrayList<String> Wangma=new ArrayList<>();
        ArrayList<String> Dipai=new ArrayList<>();
        for(int i=0;i<Pokers.size();i++){
            if(i>=Pokers.size()-3){
                Dipai.add(Pokers.get(i));
            }else if(i%3==0){
                Zhangsan.add(Pokers.get(i));
            }else if(i%3==1){
                Lisi.add(Pokers.get(i));
            }else if(i%3==2){
                Wangma.add(Pokers.get(i));
            }
        }//看牌
        lookPokers("张三",Zhangsan);
        lookPokers("李四",Lisi);
        lookPokers("王麻",Wangma);
        lookPokers("底牌",Dipai);     
    }
    private static void lookPokers(String name, ArrayList<String> Pokers){
        System.out.println(name+"的牌是：");
        for(String poker:Pokers){
            System.out.print(poker+" ");
        }System.out.println();  
    }
    }

package com.study_01;
import java.util.ArrayList;
import java.util.Collections;
import java.util.TreeMap;
import java.util.TreeSet;
/**
 * 1.创建Map集合存储牌，并且大的键对应大的牌，小的键对应小的牌
 * 2.洗牌，洗的是索引（map集合中每一张牌对应的键）
 * 3.发牌，发的索引，并且岁这个索引进行排序
 * 4.看牌，根据发到的键去map集合中找出对应的值
 */
public class Poker2 {
    public static void main(String[] args) {
        //创建一个TreeMap集合
        TreeMap<Integer,String> Pokers=new TreeMap<>();
        String[] colors={"♥","♠","♦","♣"};
        String[] numbers={"3","4","5","6","7","8","9","10","J","Q","K","A","2",};
        //创建一个ArrayList集合，用来存储没有一张牌对应的索引
        ArrayList<Integer> indexs=new ArrayList<>();
        int index = 0;
        for(String color:colors){
            for(String number:numbers){
                Pokers.put(index, color+number);
                indexs.add(index);
                index++;    
            }//存大王，小王
            Pokers.put(index, "大王");
            indexs.add(index);
            index++;
            Pokers.put(index, "小王");
            indexs.add(index);
            index++;
        }//洗牌，洗的是索引（map集合中每一张牌对应的键）
        Collections.shuffle(indexs);
        //发牌，发的是索引根据索引来找它对应的值
        TreeSet<Integer> zhangsan=new TreeSet<>();
        TreeSet<Integer> lisi=new TreeSet<>();
        TreeSet<Integer> wangma=new TreeSet<>();
        TreeSet<Integer> dipai=new  TreeSet<>();
        for(int i=0;i<Pokers.size();i++){
            if(i>=Pokers.size()-3){
                dipai.add(indexs.get(i));
            }else if(i%3==0){
                zhangsan.add(indexs.get(i));
            }else if(i%3==1){
                lisi.add(indexs.get(i));
            }else if(i%3==2){
                wangma.add(indexs.get(i));
            }
        }//看牌
        lookPoker("张三",zhangsan,Pokers);
        lookPoker("李四",lisi,Pokers);
        lookPoker("王麻",wangma,Pokers);
        lookPoker("底牌",dipai,Pokers);   
    }
    private static void lookPoker(String name, TreeSet<Integer> indexs,
            TreeMap<Integer, String> Pokers) {
        System.out.println(name+"的牌是：");
        for(Integer index:indexs){
            System.out.print(Pokers.get(index));
        }System.out.println();
    }
}