What are 4 pillers of object orinted programming?

The four pillars of the OOPs are:

• Abstraction: Abstraction is basically used to separate unwanted things from the essential ones. Only important properties.
• Encapsulation: The encapsulation process consists of certain methods and properties of the abstraction process. It also protects these methods from any interference or tampering.
• Inheritance: Inheritance is of two types basically: single inheritance & multiple inheritances. It is how a class is derived from the other class.
• Polymorphism: Here in polymorphism, you can name it all the same for the different actions of an object of different data types.