C# Get Started

C# Get Started

This guide will help you set up C#, write your first program, and understand the basic workflow.

1: Install .NET SDK

C# programs run on the .NET platform.

✔ Check if .NET is already installed

Open Command Prompt and run:

dotnet --version

If a version number appears, .NET is installed.

✔ Download & Install

  • Download .NET SDK (LTS version)

  • Choose your OS: Windows / Linux / macOS

  • Install and restart your system

2: Install an IDE (Recommended)

✅ Visual Studio (Best for Beginners)

  • Download Visual Studio Community

  • During installation, select:

    • ✔ .NET Desktop Development

    • ✔ ASP.NET and web development (optional)

✅ Other Options

  • Visual Studio Code (lightweight)

  • JetBrains Rider

3: Create Your First C# Program

✔ Using Command Line

dotnet new console -n HelloWorld
cd HelloWorld
dotnet run

✔ Default Program Code


 

Output:

Hello, World!

4: Understand Program Structure

Part Description
using System; Imports built-in libraries
class Program Defines a class
Main() Entry point of the program
Console.WriteLine() Prints output

5: Run the Program

dotnet run

6: C# File Extension

  • C# source file: .cs

  • Project file: .csproj

 Common C# Project Types

  • Console App

  • ASP.NET Web App

  • Class Library

  • Windows Forms / WPF

  • Web API

Next Steps in C#

After getting started, learn:

  1. C# Syntax & Comments

  2. Variables & Data Types

  3. Operators

  4. Control Statements (if, switch, loops)

  5. Methods & Classes

  6. OOP Concepts

  7. Exception Handling

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