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++

You are already familiar with [Access Modifiers](https://www.educative.io/courses/learn-object-oriented-programming-in-cpp/access-modifiers) from the [Classes](https://www.educative.io/courses/learn-object-oriented-programming-in-cpp/what-is-a-class) chapter. By using these specifiers, we limit the access of the data members and member functions to the other *classes* and *main*. 

# `private` Mode of Inheritance
By using `private` inheritance, the *private* data members and member functions of the base class are inaccessible in the derived class. *Protected* and *Public* members of the base class are accessible to the derived class and behave as `private` members of the derived class.

> Note: any classes inheriting from the above-derived class remain unaware (that is, do not have access) of the base class.

Let's look at the implementation using `private` inheritance: 

In this lesson, we'll learn about how Public, Private and Protected inheritance is done in C++. 

Introduction

Functions

Pointers

Classes

OOP in C++ Exam 1

Data Hiding

Inheritance

Polymorphism

Composition, Aggregation and Association

OOP in C++ Exam 2

Modes of Inheritance