Data Structures and Algorithms
with Object-Oriented Design Patterns in Java 
Program 
introduces
an abstract class called AbstractSearchableContainer.
It is intended to be used as the base class from which
concrete searchable container realizations are derived.
As illustrated in Figure ,
the AbstractSearchableContainer class
extends the AbstractContainer class
(defined in Program )
and it implements the SearchableContainer interface
(defined in Program ).
Program: AbstractSearchableContainer class.
Copyright © 1998 by Bruno R. Preiss, P.Eng. All rights reserved.