用Java实现扑克牌洗牌 | Wukong's Blog

Java已经忘了差不多了，最近又需要重新捡起Java。
对于一副扑克牌共有54张，扑克牌洗牌就是将这54张牌没有规律的输出出来，
用ArrayList实现，本质是54个数的随机输出，穿了身衣服，输出出来就好看多了

public class Poker {
  public static String poker(int num) {
    String str = "";
    String[] huase = {"红桃","黑桃","梅花","方块"};
    String[] number = {"A","2","3","4","5","6","7","8","9","10","J","Q","K"};
    if(num/4 > 12) {
      if(num%4 == 0) {
        str += "小鬼";
      } else if(num%4 == 1) {
        str += "大鬼";
      }
    } else {
      str += huase[num%4] + number[num/4] ;
    }
    return str;
  }
}

public class Client {
  public static void main(String[] args) {
    // 定义变量
    ArrayList list = new ArrayList();
    Random random = new Random();
    Poker poker = new Poker();
    int i = 0;

    // 向数组中增加数字
    for(i=0;i<54;i++) {
      list.add(poker.poker(i));
    }

    // 随机输出数组中的每个数字
    int length = list.size();
    for(i=0;i<length;i++) {
      //随机生成数组下标
      int num = random.nextInt(list.size());
      //取出数字
      System.out.println(list.get(num));
      //将数字从数组中移除
      list.remove(num);
    }
  }
}

看起来舒服多了