There are generally two ways by which a program can be constructed to exhibit polymorphic behavior. Namely, through composition or inheritance. Polymorphism via composition relies on (1) well-defined and narrow interfaces and (2) other objects or types containing references to things that implement those interfaces.
How can polymorphism be implemented?
You can use polymorphism to solve this problem in two basic steps:
- Create a class hierarchy in which each specific shape class derives from a common base class.
- Use a virtual method to invoke the appropriate method on any derived class through a single call to the base class method.
How do you implement polymorphism in oops?
Inclusion polymorphism
In method overriding, you have methods having identical signatures present in both the base and the derived classes. You would typically want to use virtual methods to implement run-time polymorphism or late binding.
