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What is Pure Virtual Function? Why and when it is used ?
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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.
| Is This Answer Correct ? | 37 Yes | 11 No |
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