Understanding the Fundamentals of OOPS in Java
Java is a powerful and versatile programming language widely used for building various applications. One key reason behind its popularity is its foundation in Object-Oriented Programming (OOP) principles. But what exactly is OOPs in Java, and why is it so important?
As we already know, object-oriented programming system (OOPS) is a programming paradigm centred around the concept of objects. These objects are instances of a class, which can be thought of as blueprints for creating individual pieces of data with specific properties (attributes) and behaviours (methods). It allows us to create modular, reusable, and maintainable code, which is crucial for building large and complex software systems.
In this blog, we will explore the core concepts of OOPs in Java, including classes, objects, constructors, along with its four pillars: inheritance, polymorphism, encapsulation, and abstraction, using code and diagrams, wherever necessary. These concepts will help us understand how Java helps us in writing efficient, organised, and scalable code.
Let’s start…
What is OOPS in Java?
As told above, OOPS is an essential concept of Java and a method or paradigm that is centered around the concept of objects, which can be briefly defined as an instance of a class. These objects are just like real-world entities with their unique characteristics, behaviour, methods etc, used to design and build applications. Unlike procedural programming, which relies on sequences of instructions, OOPs organize code into reusable objects, making it easier for us to manage, extend and maintain our code.
What is a programming paradigm? A programming paradigm is a method or style of programming that defines a set of principles, techniques and patterns for structuring code and solving problems on a computer.
If we now try to understand the concept of OOPS, it is basically a structured way of writing code by organizing it in the form of classes and objects which makes managing the code easier.
Pillars of OOPS in Java
As told there are four pillars –
- Abstraction
- Encapsulation
- Polymorphism
- Inheritance
