Gain insights into OOP with C#. Delve into practical coding examples and exercises, exploring OOP concepts through a real-world vending machine project to understand and apply them effectively.

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Object-oriented programming (OOP) has been around for decades. As the original object-oriented language, C# is a mainstay in the world of computer programming.

All the concepts of object-oriented programming that C# developers love to have in their arsenal are explained in detail along with relevant coding examples and exercises in this course.

This course is unique in its nature as it follows a project-based learning approach. Throughout the course, a real-world example of vending machine is followed to help the learners develop a firm understanding of the stated OOP concepts.

The learners will not only be able to play around with the project,  they’ll also be able to see all the concepts in action in this project.

Learn Object-Oriented Programming in C#

# Definition
**Abstraction** refers to exposing only the essential features of an object to the user and hiding the inner details to reduce complexity. It can be put this way: the user only has to know *what an object does?* rather than *how it does it?*.

# Real-world Examples

The above illustration of the *users* and the *admin* of an application is a good real-world example of **abstraction**. 
* A *user* can only use and interact with the limited features of an application, i.e., the user interface, and is unaware of the implementation details or the way the application was developed. Usually, the users are only concerned with the functionality of an application. 
* An *admin* can have the access to a lot more features of the application and nothing is hidden from him. The admin can monitor the activity of the users, knows how the application was developed and can implement new features by deploying them in the application.

In the above example, abstraction is being applied to the user but not to the admin.

This lesson will go over with a very important concept of OOP named abstraction.

Introduction to Object-Oriented Programming

Classes and Objects

Data Hiding

Inheritance

Polymorphism

Abstract Classes and Interfaces

Composition, Aggregation and Association

What Is Abstraction?

Definition

Real-world Examples