【Collections：集合工具类：扑克游戏】

package com.yjf.esupplier.common.test;

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

/**
 * @author shusheng
 * @description 扑克游戏
 * @Email shusheng@yiji.com
 * @date 2018/12/18 17:37
 */
public class PokerDemo {

    public static void main(String[] args) {
        // 创建一个牌盒
        ArrayList<String> array = new ArrayList<String>();
        String[] colors = {"♠", "♥", "♣", "♦"};
        // 定义一个点数数组
        String[] numbers = {"A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"};
        // 装牌
        for (String color : colors) {
            for (String number : numbers) {
                array.add(color.concat(number));
            }
        }
        array.add("小王");
        array.add("大王");
        // 洗牌
        Collections.shuffle(array);
        System.out.println("array:" + array);

        // 发牌
        ArrayList<String> fengQingYang = new ArrayList<String>();
        ArrayList<String> linQingXia = new ArrayList<String>();
        ArrayList<String> liuYi = new ArrayList<String>();
        ArrayList<String> diPai = new ArrayList<String>();
        for (int x = 0; x < array.size(); x++) {
            if (x >= array.size() - 3) {
                diPai.add(array.get(x));
            } else if (x % 3 == 0) {
                fengQingYang.add(array.get(x));
            } else if (x % 3 == 1) {
                linQingXia.add(array.get(x));
            } else if (x % 3 == 2) {
                liuYi.add(array.get(x));
            }
        }

        // 看牌
        lookPoker("风清扬", fengQingYang);
        lookPoker("林青霞", linQingXia);
        lookPoker("刘意", liuYi);
        lookPoker("底牌", diPai);
    }

    private static void lookPoker(String name, ArrayList<String> array) {
        System.out.print(name + "的牌是：");
        for (String s : array) {
            System.out.print(s + " ");
        }
        System.out.println();
    }

}