斗地主游戏，嘻嘻嘻

//准备数据
String[] flower = {"♣","♥","♦","♠"};
String[] number = {"2","3","4","5","6","7","8","9","10","J","Q","K","A"};
String[]   king = {"大王","小王"};


//存牌
HashMap list = new HashMap<>();
int sum = 0;
for (int i = 0; i < number.length; i++) {
    for (int j = 0; j < flower.length; j++) {
        list.put(sum,number[i] + flower[j]);
        sum++;
    }
}

for(String value : king) {
    list.put(sum,value);
    sum++;
}

LinkedList linkedList = new LinkedList<>();

for (int i = 0; i < list.size(); i++) {
    linkedList.add(i);
}

//洗牌
Collections.shuffle(linkedList);

//发牌
int[] bottomPaper = {linkedList.get(linkedList.size() - 3) , linkedList.get(linkedList.size() - 2) ,linkedList.get(linkedList.size() - 1) };
TreeSet user1 = new TreeSet<>();
TreeSet user2 = new TreeSet<>();
TreeSet user3 = new TreeSet<>();
//给每个用户发牌
for (int i = 0; i < linkedList.size() - 3; i++) {

    if (i % 3 == 0) {
        user1.add(linkedList.get(i));
    }else if (i % 3 == 1) {
        user2.add(linkedList.get(i));
    }else {
        user3.add(linkedList.get(i));
    }

}
//遍历底牌
for (Integer key : bottomPaper) {
    System.out.print(list.get(key) + " ");
}
System.out.println();
//遍历用户一
for (Integer key : user1) {
    System.out.print(list.get(key) + " ");
}

System.out.println();
//遍历用户二
for (Integer key : user2) {
    System.out.print(list.get(key) + " ");
}

System.out.println();
//遍历用户三
for (Integer key : user3) {
    System.out.print(list.get(key) + " ");
}