扑克进阶

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

public class asdasd {
    public static void main(String[] args) {
        //1.准备牌
        //创建一个Map集合,存储牌的索引和组装好的牌
        HashMap<Integer,String> poker = new HashMap<>();
        //创建一个List集合,存储牌的索引
        ArrayList<Integer> pokerIndex = new ArrayList<>();
        ArrayList<String> color=new ArrayList<String>();
        ArrayList<String> num=new ArrayList<String>();
        //定义两个集合,存储花色和牌的序号
        Collections.addAll(color,"♥","♣","♠","♦");
        Collections.addAll(num,"2","3","4","5","6","7","8","9","10","A","J","K","L");
        //把大王和小王存储到集合中
        //定义一个牌的索引
        int index = 0;
        poker.put(index,"大王");
        pokerIndex.add(index);
        index++;
        poker.put(index,"小王");
        pokerIndex.add(index);
        index++;
        //循环嵌套遍历两个集合,组装52张牌,存储到集合中
        for (String number : num) {
            for (String c : color) {
                String str=c+number;
                poker.put(index,c+number);
                pokerIndex.add(index);
                index++;
            }
        }
        //System.out.println(poker);
        //System.out.println(pokerIndex);

        /*
            2.洗牌
            使用Collections中的方法shuffle(List)
         */
        Collections.shuffle(pokerIndex);
        //System.out.println(pokerIndex);

        /*
            3.发牌
         */
        //定义4个集合,存储玩家牌的索引,和底牌的索引
        ArrayList<Integer> player01 = new ArrayList<>();
        ArrayList<Integer> player02 = new ArrayList<>();
        ArrayList<Integer> player03 = new ArrayList<>();
        ArrayList<Integer> diPai = new ArrayList<>();
        //遍历存储牌索引的List集合,获取每一个牌的索引
        for (int i = 0; i <pokerIndex.size() ; i++) {
            Integer in = pokerIndex.get(i);
            //先判断底牌
            if(i>=51){
                //给底牌发牌
                diPai.add(in);
            }else if(i%3==0){
                //给玩家1发牌
                player01.add(in);
            }else if(i%3==1){
                //给玩家2发牌
                player02.add(in);
            }else if(i%3==2){
                //给玩家3发牌
                player03.add(in);
            }
        }

        /*
            4.排序
            使用Collections中的方法sort(List)
            默认是升序排序
         */
        Collections.sort(player01);
        Collections.sort(player02);
        Collections.sort(player03);
        Collections.sort(diPai);

        /*
            5.看牌
            调用看牌的方法
         */
        lookPoker("刘德华",poker,player01);
        lookPoker("周润发",poker,player02);
        lookPoker("周星驰",poker,player03);
        lookPoker("底牌",poker,diPai);
    }

    /*
        定义一个看牌的方法,提高代码的复用性
        参数:
            String name:玩家名称
            HashMap<Integer,String> poker:存储牌的poker集合
            ArrayList<Integer> list:存储玩家和底牌的List集合
        查表法:
             遍历玩家或者底牌集合,获取牌的索引
             使用牌的索引,去Map集合中,找到对应的牌
     */
    public static void lookPoker(String name, HashMap<Integer,String> poker, ArrayList<Integer> list){
        //输出玩家名称,不换行
        System.out.print(name+":");
        //遍历玩家或者底牌集合,获取牌的索引
        for (Integer key : list) {
            //使用牌的索引,去Map集合中,找到对应的牌
            String value = poker.get(key);
            System.out.print(value+" ");
        }
        System.out.println();//打印完每一个玩家的牌,换行
    }
}

标签：index,poker,进阶,ArrayList,索引,Collections,集合,扑克
来源： https://www.cnblogs.com/hrhnb/p/15625644.html