OOPs Concept Ladder

I am Naimish Trivedi, I have a far experience in native and hybrid programming. I have presented the programming concept here in a simple and easy way from my experience. This will be very useful for beginner Devs and Students.

We have seen introduction to OOPs concept in previous article now in this article, we will learn about principle of OOPs concept.

Object means a real-world entity such as a pen, chair, table, computer, watch, etc. Object-Oriented Programming is a methodology or paradigm to design a program using classes and objects. It simplifies software development and maintenance by providing some concepts:

• Class
• Object
• Inheritance
• Polymorphism
• Abstraction
• Encapsulation

Class :

Collection of objects is called class. It is a logical entity.

A class can also be defined as a blueprint from which you can create an individual object. Class doesn't consume any space.

Object :

A class is a blueprint for creating objects. It defines the properties (attributes) and behaviors (methods) that objects of that class will have. An object is an instance of a class.

Inheritance :

Inheritance allows a class (subclass) to inherit properties and behaviors from another class (superclass). It promotes code reusability and establishes a hierarchical relationship between classes.

Polymorphism :

If one task is performed in different ways, it is known as polymorphism. Polymorphism allows objects of different types to be treated as objects of a common superclass. There are two types of polymorphism: compile-time polymorphism (method overloading) and runtime polymorphism (method overriding).

Encapsulation :

Encapsulation refers to the bundling of data (attributes) and methods that operate on that data within a single unit (class). It protects the internal state of an object by hiding its attributes and exposing only the necessary functionalities through methods.

Abstraction :

Abstraction involves hiding the complex implementation details and showing only the essential features of an object. Abstract classes and interfaces are used to achieve abstraction in Java.

These OOP concepts help in creating modular, reusable, and maintainable code in Java by promoting concepts such as code reusability, encapsulation, and inheritance.

That's it for now.

Thanks,

Stay tuned for another chapter on OOPs Concept.