C# Introduction

C# Introduction

C# (pronounced “C-Sharp”) is a modern, object-oriented programming language developed by Microsoft. It is part of the .NET platform and is widely used for building desktop applications, web applications, mobile apps, cloud services, and games.

🔹 What is C#?

C# is a general-purpose, strongly typed, and type-safe programming language designed to be simple, powerful, and secure. It combines the best features of languages like C++, Java, and Visual Basic.

🔹 Key Features of C#

  • Object-Oriented – Supports classes, objects, inheritance, polymorphism, and encapsulation

  • Simple & Modern Syntax – Easy to learn and read

  • Type-Safe – Reduces runtime errors

  • Garbage Collection – Automatic memory management

  • Rich Standard Library – Large set of built-in classes and APIs

  • Cross-Platform – Runs on Windows, Linux, and macOS using .NET

  • Scalable & Secure – Suitable for small to enterprise-level applications

🔹 Uses of C#

C# is used in many real-world applications:

  • Web Applications – ASP.NET, ASP.NET Core

  • Desktop Applications – Windows Forms, WPF

  • Mobile Apps – Xamarin, .NET MAUI

  • Game Development – Unity Game Engine

  • Cloud & Microservices – Azure, Web APIs

  • Enterprise Software – ERP, CRM systems

🔹 C# and .NET

C# works with the .NET Framework / .NET Core / .NET (Modern .NET).
When you write C# code:

  1. Code is compiled into Intermediate Language (IL)

  2. IL runs on the Common Language Runtime (CLR)

  3. CLR handles memory, security, and execution

🔹 Simple C# Example


 

Output:

Hello, World!

🔹 Advantages of C#

  • Easy to learn for beginners

  • Strong Microsoft and community support

  • Excellent tooling with Visual Studio

  • High performance and reliability

🔹 Who Should Learn C#?

  • Beginners in programming

  • Web developers (ASP.NET)

  • Desktop application developers

  • Game developers (Unity)

  • Enterprise and cloud developers

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