Answer Posted / prajesh gupta (ferozepur, punj

Pure Virtual Functions:
1. "Do nothing Function"
virtual void display() = 0;
2. declared in base class.
3. class containing a pure virtual function does not
declare an object of its own. (That class is known as
ABSTRACT CLASS)

Advantages Of Using:

1. To inherit the properties of the derived class.
2. To create a base pointer required for runtime
poymorphism.
3. To avoid overwriting of member function.

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