Learn C# OOP to write cleaner, modular, and scalable code by understanding classes in C#, working with objects in C#, and applying principles like data hiding, encapsulation, and inheritance.

Become a C# Programmer

This module provides an in-depth exploration of C# OOP (object-oriented programming), focusing on writing cleaner, more modular, and scalable code. We'll begin by covering the basics of classes in C# and objects in C# and progress toward advanced OOP concepts such as encapsulation, data hiding in C#, inheritance in C#, and polymorphism. Throughout, we’ll see how C# supports these OOP principles with its unique features to enhance development efficiency.

Object-Oriented Programming in C#

## Procedural Programming
Presumably, you are familiar with the basics of programming and have used methods, also referred to as functions, in your programs.

Procedural programming is a programming paradigm.
In procedural programming, a program is divided into smaller parts called methods. 

The **basic entities** in procedural programming are **methods**.

The focal point of the procedural programming technique is to use methods for code reusability. This means that once a method is implemented in a program, it can be called on any number of times to perform the certain operation(s) rather than repetitively writing code for these operations. However, using this paradigm to implement a complex real-world scenario can be a difficult task.

## What is Object-Oriented Programming?
Programming is used to solve real-world problems and it won't make much sense if one can't model real-world scenarios using programming languages, right? This is where object-oriented programming comes into play!

> *Object-oriented programming*, also referred to as **OOP**, is a programming paradigm that relies on the concept of classes and objects.

In the real world, when we look around us, there are objects everywhere. These objects interact with each other and that is how the real world works. Furthermore, we find that many objects are similar and consider them to be instances of the same class. For example, Dog is a class whereas your pet dog is an instance of that class. Your pet has certain commonalities with all other dogs. That’s why we consider them to be instances of the same class. Composing computer programs as collections of objects (instead of methods) is the base of object-oriented programming.
The simulation of this real-world scenario in programming explores the concepts at the base of object-oriented programming.


>The basic idea of OOP is to divide a complex program into a bunch of **objects** talking to each other.


Objects in a program/application frequently represent real-world objects.

Let's suppose you are about to design the [educative.io](www.educative.io) platform. A very basic model will consist of the following objects:

* Courses
* Learners
* [Edpresso Shots](https://www.educative.io/edpresso)

# Procedural Programming
Presumably, you are familiar with the basics of programming and have used methods, also referred to as functions, in your programs.

Procedural programming is a programming paradigm.
In procedural programming, a program is divided into smaller parts called methods. 

The **basic entities** in procedural programming are **methods**.

The focal point of the procedural programming technique is to use methods for code reusability. This means that once a method is implemented in a program, it can be called on any number of times to perform the certain operation(s) rather than repetitively writing code for these operations. However, using this paradigm to implement a complex real-world scenario can be a difficult task.

# What is Object-Oriented Programming?
Programming is used to solve real-world problems and it won't make much sense if one can't model real-world scenarios using programming languages, right? This is where object-oriented programming comes into play!

> *Object-oriented programming*, also referred to as **OOP**, is a programming paradigm that relies on the concept of classes and objects.

In the real world, when we look around us, there are objects everywhere. These objects interact with each other and that is how the real world works. Furthermore, we find that many objects are similar and consider them to be instances of the same class. For example, Dog is a class whereas your pet dog is an instance of that class. Your pet has certain commonalities with all other dogs. That’s why we consider them to be instances of the same class. Composing computer programs as collections of objects (instead of methods) is the base of object-oriented programming.
The simulation of this real-world scenario in programming explores the concepts at the base of object-oriented programming.


>The basic idea of OOP is to divide a complex program into a bunch of **objects** talking to each other.


Objects in a program/application frequently represent real-world objects.

Let's suppose you are about to design the [educative.io](www.educative.io) platform. A very basic model will consist of the following objects:

* Courses
* Learners
* [Edpresso Shots](https://www.educative.io/edpresso)

This lesson welcomes you to the world of object-oriented programming.

Introduction to Object-Oriented Programming

Classes and Objects

Data Hiding

Inheritance

Polymorphism

Conclusion

A Brief Introduction

Procedural Programming

What is Object-Oriented Programming?