//定义一个存储54张牌的ArrayList集合,泛型使用String
ArrayList<String> poker = new ArrayList<>();
//定义两个数组,一个数组存储牌的花色,一个数组存储牌的序号
String[] colors = {"♠","♥","♣","♦"};
String[] numbers = {"2","A","K","Q","J","10","9","8","7","6","5","4","3"};
//先把大王和小王存储到poker集合中
poker.add("大王");
poker.add("小王");
//循环嵌套遍历两个数组,组装52张牌
for(String number : numbers){
    for (String color : colors) {
        //System.out.println(color+number);
        //把组装好的牌存储到poker集合中
        poker.add(color+number);
    }
}

/**
洗牌
使用集合的工具类Collections中的方法
static void shuffle(List<?> list) 使用默认随机源对指定列表进行置换。
*/
Collections.shuffle(poker);

//定义4个集合,存储玩家的牌和底牌
ArrayList<String> player01 = new ArrayList<>();
ArrayList<String> player02 = new ArrayList<>();
ArrayList<String> player03 = new ArrayList<>();
ArrayList<String> diPai = new ArrayList<>();

/**
    遍历poker集合,获取每一张牌
    使用poker集合的索引%3给3个玩家轮流发牌
    剩余3张牌给底牌
    注意:
        先判断底牌(i>=51),否则牌就发没了
 */
for (int i = 0; i < poker.size() ; i++) {
    //获取每一张牌
    String p = poker.get(i);
    //轮流发牌
    if(i>=51){
        //给底牌发牌
        diPai.add(p);
    }else if(i%3==0){
        //给玩家1发牌
        player01.add(p);
    }else if(i%3==1){
        //给玩家2发牌
        player02.add(p);
    }else if(i%3==2){
        //给玩家3发牌
        player03.add(p);
    }
}

//看牌
System.out.println("赌侠-刘德华:"+player01);
System.out.println("赌神-周润发:"+player02);
System.out.println("赌圣-周星驰:"+player03);
System.out.println("底牌:"+diPai);

赌侠-刘德华:[♠K, ♣3, ♠J, ♥J, ♠7, ♦4, ♣4, ♣Q, ♣2, ♣8, ♠9, ♣5, ♦A, ♣6, ♣A, ♦9, 小王]
赌神-周润发:[♥2, ♥8, ♠10, ♣J, ♣7, ♦8, ♦2, ♥6, ♥4, ♣10, ♠4, ♠5, ♠3, ♦6, ♥7, ♦3, ♦J]
赌圣-周星驰:[♥3, ♠6, ♦K, ♠8, ♥K, ♦10, ♥10, ♠Q, ♥9, ♠A, ♥5, ♥Q, 大王, ♦Q, ♥A, ♣9, ♦7]
底牌:[♣K, ♦5, ♠2]