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89. Define changing interfaces.
Answer:
By definition, a node class is part of a class hierarchy. Not every class in a hierarchy needs to offer the same interface. In particular, a derived class can provide more member functions, and a sibling class can provide a completely different set of functions.
Asked In :: iGate Virtusa
By definition, a node class is part of a class hierarchy. Not every class in a hierarchy needs to offer the same interface. In particular, a derived class can provide more member functions, and a sibling class can provide a completely different set of functions.