import java.awt.Color;
import java.awt.image.LookupOp;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

public class Demo {

    public static void main(String[] args) {

        String s[] = { "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A", "2" };
        String color[] = { "方块", "红桃", "黑桃", "梅花" };
        HashMap<Integer, String> HM = new HashMap<>();
        ArrayList<Integer> list = new ArrayList<>();
        int index = 0;
        for (String s2 : s) {
            for (String s3 : color) {
                HM.put(index, s3.concat(s2));
                index++;
                list.add(index);
            }
        }
        HM.put(index, "大王");
        list.add(index);
        index++;
        HM.put(index, "小王");
        list.add(index);

        Collections.shuffle(list);  //将索引打乱顺序

        TreeSet<Integer> A = new TreeSet<>();
        TreeSet<Integer> B = new TreeSet<>();
        TreeSet<Integer> C = new TreeSet<>();
        TreeSet<Integer> dipai = new TreeSet<>();

        for (int i = 0; i < list.size(); i++) {
            if (i >= list.size() - 3) {
                dipai.add(list.get(i));   //发牌  将索引 传给底牌
            } else if (i % 3 == 1) {
                A.add(list.get(i));
            } else if (i % 3 == 0) {
                B.add(list.get(i));
            } else {
                C.add(list.get(i));
            }
        }
        
        LookPoker(HM,A,"a");
        LookPoker(HM,B,"b");
        LookPoker(HM,C,"C");
        LookPoker(HM,dipai,"DIPAI");
        
        //System.out.println(HM.size());
    }
    public static void LookPoker(HashMap<Integer, String> hp,TreeSet<Integer> ts,String name) {
        System.out.print(name+"的牌是:");
        
        for(Integer it:ts) {
            System.out.print(hp.get(it)+" ");  //
        }
System.out.println();
    }
}

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;

public class Demo {

    public static void main(String[] args) {
        String num[] = { "A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K" };
        String color[] = { "红心", "黑桃", "方块", "梅花", };
        ArrayList<String> poker = new ArrayList<>();
        for (String S1 : color) {
            for (String s2 : num) {
                poker.add(S1.concat(s2));
            }
        }
        poker.add("大王");
        poker.add("小王");

        Collections.shuffle(poker);

        ArrayList<String> a = new ArrayList<>();
        ArrayList<String> b = new ArrayList<>();
        ArrayList<String> c = new ArrayList<>();
        ArrayList<String> dipai = new ArrayList<>();

        for (int i = 0; i < poker.size(); i++) {  
            if (i >= poker.size() - 3) {
                dipai.add(poker.get(i)); 
            } else if (i % 3 == 0) {
                a.add(poker.get(i));
            } else if (i % 3 == 1) {
                b.add(poker.get(i));
            } else {
                c.add(poker.get(i));
            }
        }
        
        System.out.println(a);
        System.out.println(b);
        System.out.println(c);
        System.out.println(dipai);
        System.out.println(poker.size());
    }
}