java 斗地主随机发牌

package cn.itcast.demo6;

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

/*
 *  实现模拟斗地主的功能
 *   1. 组合牌
 *   2. 洗牌
 *   3. 发牌
 *   4. 看牌
 */
public class DouDiZhu {
	public static void main(String[] args) {
		//1. 组合牌
		//创建Map集合,键是编号,值是牌
		HashMap pooker = new HashMap();
		//创建List集合,存储编号
		ArrayList pookerNumber = new ArrayList();
		//定义出13个点数的数组
		String[] numbers = {"2","A","K","Q","J","10","9","8","7","6","5","4","3"};
		//定义4个花色数组
		String[] colors = {"♠","♥","♣","♦"};
		//定义整数变量,作为键出现
		int index = 2;
		//遍历数组,花色+点数的组合,存储到Map集合
		for(String number : numbers){
			for(String color : colors){
				pooker.put(index, color+number);
				pookerNumber.add(index);
				index++;
			}
		}
		//存储大王,和小王
		pooker.put(0, "大王");
		pookerNumber.add(0);
		pooker.put(1, "小王");
		pookerNumber.add(1);
		
		//洗牌,将牌的编号打乱
		Collections.shuffle(pookerNumber);
		
		//发牌功能,将牌编号,发给玩家集合,底牌集合
		ArrayList player1 = new ArrayList();
		ArrayList player2 = new ArrayList();
		ArrayList player3 = new ArrayList();
		ArrayList bottom = new ArrayList();
		
		//发牌采用的是集合索引%3
		for(int i = 0 ; i < pookerNumber.size() ; i++){
			//先将底牌做好
			if(i < 3){
				//存到底牌去
				bottom.add( pookerNumber.get(i));
			   //对索引%3判断
			}else if(i % 3 == 0){
				//索引上的编号,发给玩家1
				player1.add( pookerNumber.get(i) );
			}else if( i % 3 == 1){
				//索引上的编号,发给玩家2
				player2.add( pookerNumber.get(i) );
			}else if( i % 3 == 2){
				//索引上的编号,发给玩家3
				player3.add( pookerNumber.get(i) );
			}
		}
		//对玩家手中的编号排序
		Collections.sort(player1);
		Collections.sort(player2);
		Collections.sort(player3);
		//看牌,将玩家手中的编号,到Map集合中查找,根据键找值
		//定义方法实现
		look("诸葛亮",player1,pooker);
		look("李白",player2,pooker);
		look("韩信",player3,pooker);
		look("底牌",bottom,pooker);
	}
	public static void look(String name,ArrayList player,HashMap pooker){
		//遍历ArrayList集合,获取元素,作为键,到集合Map中找值
		System.out.print(name+" ");
		for(Integer key : player){
			String value = pooker.get(key);
			System.out.print(value+" ");
		}
		System.out.println();
	}
}