JAVA IS INCOMPLETE WITHOUT THIS

OOPS as Object Oriented Programming System in which programs are considered as collection of Objects.

Why do we use OOP?

1.OOP make development & maintenance easier. 2.It provide data hiding feature. 3. It provide solution to real world problem.

What is class?

Class is blueprint that describes details of object.

What is an Object?

An object is instance of class. It has its own state, behavior and identity.

Pillars OF OOPS:

1. Inheritance 2. Polymorphism 3. Abstraction 4. Encapsulation

1. Inheritance

Inheritance is a concept where one class shares structure & behavior defined in another class.

2. Polymorphism

Polymorphism is nothing but assigning behavior or value in a subclass to already declared in main class. Simply it takes more than one form.

3. Abstraction

The act of hiding an application's internal workings from the outside world is known as abstraction.

4. Encapsulation

Encapsulation is an attribute of an object and it contains all data which is hidden. Hidden data can be restricted to member of that class.

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