1 public class Card
   2 {
   3         String suit;
   4         int rank;
   5         
   6         public static void main(String[] args)
   7         {
   8                 Card a, b, c;
   9                 
  10                 a = new Card();
  11                 a.suit = "ハート";
  12                 a.rank = 12;
  13                 
  14                 b = new Card();
  15                 b.suit = "スペード";
  16                 b.rank = 3;
  17                 
  18                 c = b;
  19                 c.rank = 10;
  20 
  21                 System.out.println( "aは " + a.suit + a.rank );
  22                 System.out.println( "bは " + b.suit + b.rank );
  23                 System.out.println( "cは " + c.suit + c.rank );
  24         }
  25 }