OOPs Concept In Java

OOPs Concept In Java

Hello, readers. In today’s topic, we’ll discuss the OOPs concept in Java. These fundamental concepts must be understood before creating a Java program. In case you missed it, we also discussed decision-making, loop control, and method in java. Hurry up now! In the past, there have also been brief discussions on a number of other Java-related topics, such as the differences between C++ and Java, Java operators, and many others. This information will significantly improve your understanding. So without further ado, let’s get to the point:

What are OOPs in Java?

OOPs Concept In Java
OOPs Concept In Java

OOP stands for object-oriented programming. Programming in this manner is based on the concept of “objects,” which can store both data and methods. The primary objective of object-oriented programming is to increase the flexibility and maintainability of the program. Object-oriented programming seeks to map code instructions to the real world while also making the code concise and easy to understand. We will go over each OOPs feature in detail so that you have no trouble understanding the concepts.

A fundamental concept in modern programming languages like Java is what is known as “object-oriented programming,” or OOP/OOPs Concept In Java. a modular approach that enables the creation of objects—individual units made up of data and functions. It offers code reuse and emphasizes data and security. Using OOP, we can make our code appear more like actual code. Procedural programming entails writing procedures or methods that carry out operations on the data, in contrast to object-oriented programming, which creates objects that contain both data and methods.

  • The use of the OOPs Concept In Java to solve a problem is one of the most popular programming techniques.
  • OOPs Concept In Java central tenet is the creation of objects, their reuse throughout the program, and their manipulation to produce desired results.
  • Incorporating real-world programming concepts like inheritance, polymorphism, abstraction, encapsulation, etc. is the aim of object-oriented programming.
  • OOPs Concept In Java main objective is to link the data and the methods (functions).

OOPs Concepts In Java

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


An object is a runtime entity in an object-oriented system; ordinarily, we refer to an object as an instance of a class. Each thing has special qualities and traits. OOP’s core components are objects, which are instances of classes.


The term “class” refers to the collection of objects. It is merely a logical element; it is not a physical thing. Classes are similar to object constructors in terms of creating objects. No memory is consumed by classes. Another name for a class is an object’s template. Classes may have constructors, methods, or fields as members. A class contains both instances of initializing and static initializing. Another way to think of a class is as a base upon which an individual object can be constructed.


By using abstraction, you can “hide” irrelevant information from the user and only show what is “relevant.” We can say that the main objective of abstraction is data hiding. It is a process for creating a new data type that is suitable for a specific application. In Java, classes are used for abstraction. It is therefore also referred to as an “abstract data type.”
For instance, when you log into your bank account online, you are not aware of what happens after you press the login button, how the input data is sent to the server, or how it is verified. More information about Java Abstraction is available here.


One of the core concepts in OOPs is inheritance, which explains how one object adopts its parent object’s behavioral patterns. It improves the parent-child dynamic between the two classes. In other words, when you inherit from an older class, you can use its fields and methods once more. The idea behind this is that we can layer new classes on top of older classes. It offers a solid, natural mechanism for arranging and structuring any software.


Combining data (class variables) and function (method) into a single entity is the process of encapsulation (class). Encapsulation refers to ensuring that sensitive data is shielded from users. It can only be accessed by the methods of their current class. Throughout this process, the data is kept private from other classes and is only reachable via the current class’s methods. As a result, it is also known as data hiding. In order to prevent outsiders from accessing the code and data, encapsulation acts as a barrier.


In this context, “Poly” stands for “Many,” and “Morphism” for “Form.” One of Java’s OOP concepts is the ability of a variable, object, or function to take on various forms. It is known as polymorphism. It occurs when several classes are related by inheritance. Polymorphism is frequently expressed as having one interface and many methods. One of the main tenets of OOPs is this.

Advantages of OOPs Concept

  • Utilizing OOP is quicker and easier.
  • OOP makes the structure of the programme obvious.
  • The OOP principle of Don’t Repeat Yourself (DRY) makes it easier to maintain, modify, and debug Java code.
  • OOP makes it possible to develop fully reusable applications more quickly and with less code.
  • Reusability, data redundancy, code maintenance, security, simplicity of troubleshooting, and design advantages are the main tenets of Java’s OOPs concepts.

Note:-A programming principle called “Don’t Repeat Yourself” (DRY) aims to reduce code repetition. You should extract the portions of the code that are common to the application and place them in one location rather than repeatedly writing the same code.

Thus, Java’s OOPs concept serves as the main topic of this article. I truly hope you can put this to use. Wait for this to meet in the next post, where we will discuss a brand-new aspect of Java. You’re welcome.

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