What is Abstract Class In C++?
An abstract class in C++ is a class that cannot be instantiated and is designed to serve as a blueprint for derived classes. It contains at least one pure virtual function, which is declared by assigning 0
in its declaration (e.g., virtual void functionName() = 0;
). Derived classes must provide implementations for these pure virtual functions to be instantiated. Abstract classes enable polymorphism and define a common interface for different classes, promoting code reusability and organization.