What is runtime polymorphism

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Runtime polymorphism is the ability of a function to behave differently based on the object it is called with at runtime.

Runtime polymorphism is achieved through method overriding in object-oriented programming.
It allows a subclass to provide a specific implementation of a method that is already provided by its superclass.
The actual method that gets called is determined by the type of object at runtime.
Example: Animal class has a method 'makeSound'. Dog and Cat classes override this method to make different sounds.
When a method like 'makeSound' is called on an Animal object, the specific sound made will depend on the actual type of Animal (Dog or Cat).

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