What is a node class?

What is a node class?

A node class defines as : 
> it relies on the base class for services and implementation.
> It provides a wider interface to the users than its base class.
> It relies primarily on virtual functions in its public interface.
> It depends on all its direct and indirect base class.
> It can be understood only in the context of the base class.
> It can be used as base for further derivation.
> It can be used to create objects.
         A node class is a class that has added new services or functionality beyond the services inherited from its base class.

By:Umang
Date:2002-01-09 00:00:00

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