Java实现斗地主之洗牌发牌

 //创建一个牌盒，也就是定义一个集合对象，用ArrayList集合实现
        ArrayList<String> poker=new ArrayList<String>();

//往牌盒里面装牌
        /*
            ◆2,◆3,◆4.....◆k,◆A
            ♣2,...
            ♥2,...
            ♠2,...
            小王  , 大王
        */
        //定义花色数组
        String[] colors={"◆","♣","♥","♠"};
        //定义点数数组
        String[] numbers={"2","3","4","5","6","7","8","9","10","J","Q","K","A"};
        //将所有牌组合放入牌盒
        for(String col:colors)
        {
            for(String num:numbers)
            {
                poker.add(col+num);
            }
        }
        //将最后两张大小王放入牌盒
        poker.add("小王");
        poker.add("大王");

//洗牌---把牌打乱
        Collections.shuffle(poker);

//发牌--》遍历牌盒，给三个玩家发牌
        ArrayList<String> p1=new ArrayList<>();
        ArrayList<String> p2=new ArrayList<>();
        ArrayList<String> p3=new ArrayList<>();
        //留下三张底牌
        ArrayList<String> dp=new ArrayList<>();
        //将牌分发
        for(int i=0;i<poker.size();i++)
        {
            if(i>=poker.size()-3)
            {
                dp.add(poker.get(i));
            }
            else if(i%3==0)
            {
                p1.add(poker.get(i));
            }
            else if(i%3==1)
            {
                p2.add(poker.get(i));
            }
            else if(i%3==2)
            {
                p3.add(poker.get(i));
            }
        }

//看牌---分别展示三位玩家自己的牌
          show("大忽悠",p1);
         show("小忽悠",p2);
         show("超级无敌大忽悠",p3);
         //展示底牌
        System.out.print("底牌如下: ");
        for(var Dp:dp)
            System.out.print(Dp+" ");

 public static  void show(String  name,ArrayList<String> arr)
    {
        System.out.print(name+"的牌: ");
        for(int i=0;i<arr.size();i++)
        {
            System.out.print(arr.get(i)+" ");
        }
        System.out.println();
    }

import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class Main
{
    public static void main(String[] args)
    {
        //创建一个牌盒，也就是定义一个集合对象，用ArrayList集合实现
        ArrayList<String> poker=new ArrayList<String>();
       //往牌盒里面装牌
        /*
            ◆2,◆3,◆4.....◆k,◆A
            ♣2,...
            ♥2,...
            ♠2,...
            小王  , 大王
        */
        //定义花色数组
        String[] colors={"◆","♣","♥","♠"};
        //定义点数数组
        String[] numbers={"2","3","4","5","6","7","8","9","10","J","Q","K","A"};
        //将所有牌组合放入牌盒
        for(String col:colors)
        {
            for(String num:numbers)
            {
                poker.add(col+num);
            }
        }
        //将最后两张大小王放入牌盒
        poker.add("小王");
        poker.add("大王");
        //洗牌---把牌打乱
        Collections.shuffle(poker);
       //发牌--》遍历牌盒，给三个玩家发牌
        ArrayList<String> p1=new ArrayList<>();
        ArrayList<String> p2=new ArrayList<>();
        ArrayList<String> p3=new ArrayList<>();
        //留下三张底牌
        ArrayList<String> dp=new ArrayList<>();
        //将牌分发
        for(int i=0;i<poker.size();i++)
        {
            if(i>=poker.size()-3)
            {
                dp.add(poker.get(i));
            }
            else if(i%3==0)
            {
                p1.add(poker.get(i));
            }
            else if(i%3==1)
            {
                p2.add(poker.get(i));
            }
            else if(i%3==2)
            {
                p3.add(poker.get(i));
            }
        }
         //看牌---分别展示三位玩家自己的牌
          show("大忽悠",p1);
         show("小忽悠",p2);
         show("超级无敌大忽悠",p3);
         //展示底牌
        System.out.print("底牌如下: ");
        for(var Dp:dp)
            System.out.print(Dp+" ");
    }
    public static  void show(String  name,ArrayList<String> arr)
    {
        System.out.print(name+"的牌: ");
        for(int i=0;i<arr.size();i++)
        {
            System.out.print(arr.get(i)+" ");
        }
        System.out.println();
    }
}

import java.util.*;

public class Main
{
    public static void main(String[] args)
    {
        //HashMap存放索引和对应的牌
        HashMap<Integer,String> map=new HashMap<>();
        //存放索引的数组
        ArrayList<Integer> index=new ArrayList<>();
        //花色和点数数组
        String[] colors={"◆","♣","♥","♠"};
        String[] numbers={"2","3","4","5","6","7","8","9","10","J","Q","K","A"};
        //发牌
        int pos=0;//索引
        for(var col:colors)
        {
            for(var num:numbers)
            {
                map.put(pos,col+num);
                index.add(pos);
                pos++;
            }
        }
        //对索引执行洗牌操作
        Collections.shuffle(index);
        //发牌
        TreeSet<Integer> p1=new TreeSet<>();
        TreeSet<Integer> p2=new TreeSet<>();
        TreeSet<Integer> p3=new TreeSet<>();
        TreeSet<Integer> dp=new TreeSet<>();
            for(int i=0;i<index.size();i++)
            {
                if(i>=index.size()-3)
                {
                    dp.add(index.get(i));
                }
                else if(i%3==0)
                {
                    p1.add(index.get(i));
                }
                else if(i%3==1)
                {
                    p2.add(index.get(i));
                }
                else if(i%3==2)
                {
                    p3.add(index.get(i));
                }
            }
            //看牌
        //看牌---分别展示三位玩家自己的牌
        show("大忽悠",p1,map);
        show("小忽悠",p2,map);
        show("超级无敌大忽悠",p3,map);
        //展示底牌
        System.out.print("底牌如下: ");
       for(var Dp:dp)
       {
           System.out.print(map.get(Dp)+" ");
       }
    }
    public static  void show(String  name,TreeSet<Integer> arr,HashMap<Integer,String> map)
    {
        System.out.print(name+"牌如下： ");
       for(var ele:arr)
       {
           System.out.print(map.get(ele)+" ");
       }
        System.out.println();
    }
}