fan_fan_f的博客

public static void main(String[] args) { List list=new ArrayList<>(); String []number={“A”,“2”,“3”,“4”,“5”,“6”,“7”,“8”,“9”,“10”,“J”,“Q”,“K”}; String []suit={“♥”,“♠”,“♣”,“♦”}; for (String s : suit) { for (String s1 : number) { list.add(s+s1); } } list