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++

`Composition` is accessing other classes objects in your class and *owner* class owns the object and is responsible for its lifetime. Composition relationships are **Part-of** relationships where the part must constitute part of the whole object. We can achieve composition by adding smaller parts of other classes to make a complex unit.

So, what makes composition unique? 

> In composition, the lifetime of the owned object depends on the lifetime of the owner. 

### Example

A `car` is composed of an *engine*, *tyres*, and *doors*. In this case, a `Car` owned these objects so a `Car` is an *Owner* class and `tyres`,`doors` and `engine` classes are *Owned* classes. 

`Composition` is accessing other classes objects in your class and *owner* class owns the object and is responsible for its lifetime. Composition relationships are **Part-of** relationships where the part must constitute part of the whole object. We can achieve composition by adding smaller parts of other classes to make a complex unit.

So, what makes composition unique? 

> In composition, the lifetime of the owned object depends on the lifetime of the owner. 

# Example

A `car` is composed of an *engine*, *tyres*, and *doors*. In this case, a `Car` owned these objects so a `Car` is an *Owner* class and `tyres`,`doors` and `engine` classes are *Owned* classes. 

In this lesson, we'll learn how can we achieve composition in C++.

Introduction

Functions

Pointers

Classes

OOP in C++ Exam 1

Data Hiding

Inheritance

Polymorphism

Composition, Aggregation and Association

OOP in C++ Exam 2

Composition

Example