OOP means object oriented programming. OOP is programming paradigm which related with object.

OOP main concept is object and class. each object communicate with each other.

Class is a template of blueprint, which contains attributes/properties/datas/sate and behavior/methods/actions.

ex: home blueprint/sketch

Object is instance of class. object has attributes , methods and identify.object is instance of class. object is real entity, ex: real home

• clear structure.
• reusable.
• DRY code (don't repeat yourself).
• Maintainable/Bug fixing/dedug easy.
• Adoptable.
• Reduce complexity.
• Secure,protect infromation through encapsulation.
• Faster development sprint.

1. Inheritance (extends parent class with child class)
2. Encapsulation (binding properties/method one unit)
3. Abstraction (Hding implementation)
4. Polymorphism (Many form)

• https://www.educative.io/blog/object-oriented-programming
• https://www.geeksforgeeks.org/object-oriented-programming-oops-concept-in-java/
• https://medium.com/learn-how-to-program/chapter-3-what-is-object-oriented-programming-d0a6ec0a7615
• https://www.freecodecamp.org/news/object-oriented-programming-concepts-21bb035f7260/
• https://code.tutsplus.com/tutorials/object-oriented-php-for-beginners--net-12762
• https://www.edureka.co/blog/object-oriented-programming/

• https://www.edureka.co/blog/interview-questions/oops-interview-questions/ (interview questions)
• https://www.fullstack.cafe/blog/csharp-object-oriented-programming-interview-questions