案例_模拟斗地主发牌

按照斗地主的规则，完成洗牌发牌的动作。
具体规则：
1.组装54张扑克牌
2.将54张牌顺序打乱
3.三个玩家参与游戏，三个人交替摸牌，每个人17张牌，最后三张留作底牌。
4.查看三人各自手中的牌（按照牌的大小排序）、底牌
手中扑克牌从大到小的摆放顺序：大王，小王，2，A，K，Q，J，10，9，8，7，6，5，4，3

代码实现：

public class Test{
    public static void main(String[] args) {
        HashMap<Integer, String> poker = new HashMap<>();

        ArrayList<Integer> pokerIndex = new ArrayList<>();

        ArrayList<String> colors = new ArrayList<>();
        Collections.addAll(colors,"♠","♥","♣","♦");

        ArrayList<String> numbers = new ArrayList<>();
        Collections.addAll(numbers,"2","A","K","Q","J","10","9","8","7","6","5","4","3");

        int index = 0;
        poker.put(index,"大王");
        pokerIndex.add(index);
        index++;

        poker.put(index,"小王");
        pokerIndex.add(index);
        index++;

        for (String number : numbers) {
            for (String color : colors) {
                poker.put(index,color+number);
                pokerIndex.add(index);
                index++;
            }
        }

        Collections.shuffle(pokerIndex);


        ArrayList<Integer> player1 = new ArrayList<>();
        ArrayList<Integer> player2 = new ArrayList<>();
        ArrayList<Integer> player3 = new ArrayList<>();
        ArrayList<Integer> diPai = new ArrayList<>();

        for (int i = 0; i < pokerIndex.size(); i++) {
            Integer in = pokerIndex.get(i);
            if (i > 50) {
                diPai.add(in);
            } else if (i % 3 == 0) {
                player1.add(in);
            } else if (i % 3 == 1) {
                player2.add(in);
            } else if (i % 3 == 2) {
                player3.add(in);
            }
        }

        Collections.sort(player1);
        Collections.sort(player2);
        Collections.sort(player3);
        Collections.sort(diPai);


        System.out.print("玩家1:");
        for (Integer integer : player1) {
            String s = poker.get(integer);
            System.out.print(s+" ");
        }

        System.out.println();
        System.out.print("玩家2:");
        for (Integer integer : player2) {
            String s = poker.get(integer);
            System.out.print(s+" ");
        }

        System.out.println();
        System.out.print("玩家3：");
        for (Integer integer : player3) {
            String s = poker.get(integer);
            System.out.print(s+" ");
        }
        System.out.println();
        System.out.print("底牌：");
        for (Integer integer : diPai) {
            String s = poker.get(integer);
            System.out.print(s+" ");
        }
    }
}