What are the pillars of OOP ?

Encapsulation

• Self-containment
• Inner workings are hidden from the outside world
• Implemented through a Class

Inheritance

• Reuse
• A new user-defined type can be created as an extension of an existing type
• The new class is called a sub or derived class, the one it extends is the super class
• The information and behavior of the super class is present in the sub class, along with its own features

Polymorphism

• Same name taking different forms
• Doing the right thing based on the call