What if we want to count dates? sequences? letters?
Note:
Abstract Classes: Never create instances. Shared functionality only.
Concrete Classes: Create instances
Last modified at 7/3/97; 12:47:13 PM
Other Links of Interest
College of Computing | EduTech Institute | GVU Center
Mark Guzdial | Papers | CS 2390 Spring '97 Home Page | STABLE | MMC-CaMILE