OOP Concepts :

- OOP Stands for Object Oriented Programming.

- It depends on class and object.

- It is a secure rather than POP(Procedure Oriented Programming)structure.

- Secure the code and data.

Class :

- Where the data and code are bound together in a single unit is called class.

- Class used access specifier for secure data.

Object :

- Instance of class is called an object.

- Object is used for access properties of class.

OOP have four pillars :

- Inheritance

- Encapsulation

- Polymorphism

- Abstraction

(1) Inheritance :

- The ability to one class derive into another class is called Inheritance.

- Reusability of code is also called Inheritance.

(2) Encapsulation :

- The ability to data hiding is called Encapsulation.

- Private / Abstract class

(3) Polymorphism :

- Same name and multiple forms are called Polymorphism.

- (i) Compile Time Polymorphism --> Overloading

- (ii) Run-Time Polymorphism --> Overriding

(4) Abstraction :

- In OOP, abstraction is a concept that allows developers to create abstract classes and interfaces.

- A class that at least one pure virtual function or abstract function is called Abstract class.

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