What is polymorphism in C++?

What is polymorphism in C++?

Polymorphism in C++ allows methods to do different things based on the object it is acting upon. It enables a single interface to represent different underlying forms (data types).

Can you give me an example of polymorphism?

Sure! Consider a base class Shape with a method draw(). Derived classes like Circle and Square can implement draw() differently. When you call draw() on a Shape pointer that points to a Circle, it will execute the Circle's draw() method.

What are the types of polymorphism in C++?

There are two main types: compile-time polymorphism (method overloading and operator overloading) and runtime polymorphism (using virtual functions).

How does runtime polymorphism work?

Runtime polymorphism is achieved through inheritance and virtual functions. When a base class pointer points to a derived class object, the appropriate method is called at runtime based on the object type.

Why is polymorphism important in programming?

Polymorphism enhances flexibility and maintainability in code. It allows for code that can work with objects of different classes through a common interface, making it easier to extend and modify.