Introduction to OOP
Chapter 21: Software Frameworks :
Reuse of Code, Reuse of Concept
The solution comes from the two ways we have been using inheritance from the beginning of the book.
Reuse of code. Certain methods, call foundation methods, are defined in a general purpose class. These provide functionality that is common to many applications.
Reuse of concept. Other methods, called specialization methods, are defined in a parent class, but overridden in child classes. These provide the means to specialize an application to a new situation.
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