Delve into Object-Oriented Programming in C++ and discover key concepts like classes, objects, inheritance, and polymorphism to create efficient, reusable, and secure code through hands-on challenges.

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Object-oriented programming (OOP) has been around for decades. If you have a basic understanding of C++ and are interested in leveling up your skills, this class will help you do just that. 

Starting with an overview of the basics, you’ll dive into understanding the time-honored technique for implementing complex applications using user-defined classes. Followed up by discussing classes and objects, and then building up to the high-level topics including inheritance and polymorphism. 

Throughout the course, you’ll be fully immersed in OOP for C++, with illustrations, exercises, quizzes, and hands-on challenges every step of the way. You’ll walk away with an understanding of classes and objects behavior and be able to easily create simple, efficient, reusable and secure code.

Learn Object-Oriented Programming in C++

# Why do We Need Inheritance?

In the [classes](https://www.educative.io/courses/learn-object-oriented-programming-in-cpp/what-is-a-class) chapter, we've covered the `HAS-A` relationship. We know a class `HAS-A` data members and member functions.  Now, we want the data members, and member functions of the class are accessible from other classes. So, the capability of a class to derive properties and characteristics from another class is called `Inheritance`. In inheritance, we have `IS-A` relationship between classes e.g a *car* is a *vehicle* and a *ship* is a *vehicle*.

Let's take the example of `Vehicle` here.

# Vehicle Class

In a Vehicle class, we have many data members like *Make*, *Color*, *Year* and *Model*. A `Vehicle` *HAS-A*  Model, Year, Color and Make. 

## Implementation of `Vehicle` Class

Let's look at the implementation of `Vehicle` class:

In this lesson, we'll be learning about the core concept of the object-oriented paradigm, i.e., Inheritance and why there is a need for it? 

Introduction

Functions

Pointers

Classes

OOP in C++ Exam 1

Data Hiding

Inheritance

Polymorphism

Composition, Aggregation and Association

OOP in C++ Exam 2

What is Inheritance?

Why do We Need Inheritance?