OOPs concept and object class in C++

20 Feb 2023


Do you ever stop and think about all the different objects we interact with on a daily basis? From our phones to our cars, it’s remarkable how much technology has become intertwined in our lives. And behind the scenes of these everyday objects is a powerful programming language called C++ that helps create them. One key concept of OOPs is the object class which enables developers to create objects from their own custom classes in order to make development faster and more efficient. In this blog post, we'll dive deeper into the OOPs concept and look at how object class works in C++!

What are OOPs in C++

OOPs in C++ are the Object-Oriented Programming concepts used to organize data and processes together. It is intended to provide code reusing and better modularity for easier maintenance of programs. The oops concepts in C++ programming language allow the classes that can be used to create objects whose data can also be used by methods. The Oops concepts in c++ programming include what is class and object in c++ to follow a methodology to design the programs by using objects and classes. This effectively allows for modeling real-world scenarios, which was not as easy in other programming languages. By using oops in C++, developers can reduce their development time and ensure a rigid structuring of their programs thanks to oops concepts.

Oops concepts in c++

The concept of the oops in c++ programming language is based on the 6 major pillars of the language, which are

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


The object is an entity that has a particular behavior and a state. Objects can be physical or logical in c++ programming language. When an object is created it is generally allocated to the memory


Class is a collection of objects with logical entities. In the c++ programming language, a class is the foundation element of object-oriented programming. A class is created for accessing and using user-defined data types and member functions.


Inheritance is a process of making a relationship between two classes and the objects of one class acquire the features and properties of the other class. The class that inherits the properties is known as the child class and the main class is called the parent class


Polymorphism is an ability to take more than one form in the c++ programming language. This particular feature provides an operator or a function that has more than one definition. It can be implemented by using operator overloading and function overloading.


Abstraction in c++ programming language helps in the process of data hiding. It assists the program to show the essential features without showing the functionality or the detailing of the program to its user. It generally avoids unwanted information or irrelevant details but shows the important part of the program


Encapsulation helps to wrap up the functions and data together in a single unit. By privatizing the scope of the data members it can be achieved. This particular feature makes the program non-accessible to the outside world.

Advantages of using OOPs concept in C++

  • The OOPs features help the programmer to provide reusability of the coding and extend the usage of the existing classes.
  • In object-oriented programming in the c++ language, is easy to maintain any particular code as there are objects and classes, which helps to make the program easy to maintain.
  • This particular feature in the c++ programming language also helps in data-hiding methods. It is very helpful to keep the data and information safe from getting exposed o leaking.
  • Object-oriented programming is an easy feature to implement in the c++ programming language.

What is an object class in C++?

Object classes are an integral part of object-oriented programming (OOP) and are used in the C++ language. An object class in C++ is a user-defined type or data structure that is used to organize the related data of a particular object. An object class can be thought of as a blueprint for creating objects, which have data and behaviour associated with them. Object classes define the structure and behaviour of objects within the code, making developing software much easier and quick by using pre-defined object classes. Instances of object classes can then be called upon to interact with other elements within the code. C++ object class capabilities are powerful, enabling developers to create complex actions quickly without having to write additional code from scratch.

Example of C++ object and class

#include <iostream> 
using namespace std; 
class Student
      int id;//data member (also instance variable) 
      string name;//data member(also instance variable) 
int main()
    Student s1; //creating an object of Student 
    s1.id = 405; 
    s1.name = "Urmi Bose"; 
    return 0; 


Urmi Bose


C++ programming is very powerful and flexible. It is widely used in industry today because it allows programmers to precisely control how data is represented and how calculations are performed. In addition, C++ provides a level of abstraction that makes code more modular and easier to understand. Object-oriented programming (OOP) concepts allow us to model real-world entities as software objects with their own attributes and behaviours.

This article provides a vast idea about the benefits of oops in c++ and what is classes and objects in c++ example We can then create relationships between these objects in order to simulate complex systems. Understanding how to work with objects and classes is essential for any programmer who wants to be able to master this powerful language. Thanks for reading! We hope you have a better understanding of OOP concepts and object classes in C++ now.

Accept cookies & close this