継承の例

•    1 public class Card extends Chain
     2 {
     3         String suit;
     4         int rank;
     5 
     6         Card()
     7         {
     8         }
     9 
    10         Card(String suit, int rank)
    11         {
    12                 this.suit = suit;
    13                 this.rank = rank;
    14         }
    15 
    16         void show()
    17         {
    18                 System.out.printf("%s %d\n", suit, rank);
    19         }
    20 }
  

     1         public static void main(String[] args)
     2         {
     3                 Card a;
     4                 
     5                 a = new Card("ハート", 1);
     6                 a.show();
     7         }
  

          Card a = new Card();
          Chain c = new Chain();

          Card a = new Chain();
          Chain c = new Card();

          Chain c = new Card();
          System.out.println(c);

     1         public static void main(String[] args)
     2         {
     3                 Card a;
     4                 a = new Card();
     5                 
     6                 a.add(new  Card("ハート", 13));
     7                 a.add(new  Card("ハート", 12));
     8                 a.showContent();
     9         }