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 
    21         public static void main(String[] args)
    22         {
    23                 Card a;
    24                 
    25                 a = new Card("ハート", 1);
    26                 a.show();
    27         }
    28 }