Gain insights into fundamental and advanced C# programming concepts. Learn about conditional statements, loops, methods, arrays, classes, inheritance, interfaces, and delegates through practical challenges.

This course introduces you to fundamental programming concepts in C#, one of the most popular languages in the world. The highly interactive course begins with a simple Hello world program and proceeds on to cover common concepts such as conditional statements, loop statements, and methods in C#. It also reflects upon the idea of arrays as well as the power they give to the programmer to write better code. Finally, it dives deeper in order to teach about advanced concepts such as classes, inheritance, interfaces, and delegates in C# through interactive challenges and exercises.

C# for Programmers: A Practical Guide

# Implementing an interface

An **interface** is used to enforce the presence of a *method* in any *class* that **'implements'** it. 

The **interface** is defined
with the *keyword* `interface` and a class can *'implement'* it by adding `: InterfaceName` after the *class* **name**. 

A class can implement *multiple* **interfaces** by separating each **interface** with a *comma* like : 
`InterfaceName`, `ISecondInterface`.

Implementing an `interface` is simply done by *inheriting* off it and *defining* all the *methods* and *properties* declared by the `interface` after that.

## Example

Let's take a look at an *example* exhibiting an *interface*.

This lesson discusses interfaces, their implementation as well as multiple interfaces in detail 

Introduction

Variables and Casting

Operators

Conditions

Loops

Arrays

Methods

Exception Handling

Classes

OOP in C#

Delegates

C# Exam

Interfaces

Implementing an interface