java斗地主案例（利用集合或数组储存牌/Colletions中的shuffle进行打乱）

package cn.itcase.day26.demo01.demo02.dapai;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Random;

public class Demodapai {
    
    
    public static void main(String[] args) {
    
    
        ArrayList<String> poker = new ArrayList<>();
        String[] colors = {
    
    "♠", "♥", "♣", "♦"};
        String[] numbers = {
    
    "2","A","K","Q","J","10","9","8","7","6","5","4","3"};
        poker.add("大王");
        poker.add("小王");
        //组合牌  增强for快捷键（colors.for + 回车）
        for (String color : colors) {
    
    
            for (String number : numbers) {
    
    
                poker.add(color + number);
            }
        }
        Collections.shuffle(poker);//将54张牌打乱（Collections 中的shuffle方法）
        System.out.println(poker);
        System.out.println("=========================");
        ArrayList<String> play1 = new ArrayList();
        ArrayList<String> play2 = new ArrayList();
        ArrayList<String> play3 = new ArrayList();
        ArrayList<String> dipai = new ArrayList();
        for (int i = 0; i < poker.size(); i++) {
    
    
            if(i >= 51){
    
    
                dipai.add(poker.get(i));
            }else if(i % 3 == 0){
    
    
                play1.add(poker.get(i));
            }else if(i % 3 == 1){
    
    
                play2.add(poker.get(i));
            }else if(i % 3 == 2){
    
    
                play3.add(poker.get(i));
            }
        }
        /*Random r = new Random();
        int i = r.nextInt(3);
        System.out.println(i);
        for (int i1 = 0; i1 < dipai.size(); i1++) {
            if(i == 0){
                String s = dipai.get(i);
                play1.add(s);
            }else if(i == 1){
                String s = dipai.get(i);
                play2.add(s);
            }if(i == 2){
                String s = dipai.get(i);
                play3.add(s);
            }
        }*///底牌的随机发放；
        System.out.println(play1);
        System.out.println(play2);
        System.out.println(play3);
    }
}