斗地主部分代码示例(参照传智播客视频)

package poker;

import java.util.*;

public class Poker002 {
    public static void main(String[] args) {
        String[] num = {"3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A", "2"};
        String[] color = {"♥", "♣", "♦", "♠"};
        //用双列集合来装牌
        HashMap<Integer, String> poker = new HashMap<>();
        List<Integer> arrIndex = new ArrayList<>();
        int index = 0;
        for (String n : num) {
            for (String c : color) {
                arrIndex.add(index);
                poker.put(index, c.concat(n));
                index++;
            }
        }
        arrIndex.add(index);
        poker.put(index, "🃏");
        index = index + 1;
        arrIndex.add(index);
        poker.put(index, "🃏");
        //洗牌,针对索引进行打乱顺序
        Collections.shuffle(arrIndex);
        //游戏参与者
        TreeSet<Integer> gaojin = new TreeSet<>();
        TreeSet<Integer> longwu = new TreeSet<>();
        TreeSet<Integer> me = new TreeSet<>();
        TreeSet<Integer> dipai = new TreeSet<>();

        List<TreeSet<Integer>> player= Arrays.asList(gaojin,longwu,me,dipai);
        //发牌
        for (int i = 0; i < arrIndex.size(); i++) {
            if (i >= arrIndex.size() - 3) {
                dipai.add(arrIndex.get(i));
            }else if (i % 3 == 0) {
                gaojin.add(arrIndex.get(i));

            }else if (i % 3 == 1) {
                longwu.add(arrIndex.get(i));
            }else {
                me.add(arrIndex.get(i));
            }
        }

        //看牌
       for(TreeSet<Integer> play:player){
           for(int i:play){
               System.out.print(poker.get(i));
           }
           System.out.println();
       }
    }
}