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Polymorphism and Abstraction
C and C++ / Functions and Classes
In an inheritance scenario, a parent class is configured to provide its child with the basic foundation the child needs. Although a child can implement a new behavior not available on the parent object, sometimes a child object will need a customized implementation of a behavior that has already been configured with its parent. That is what happens for example when inheriting a sphere from a circle class. Both have a characteristic called Area but the area is calculated differently on each shape.
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