learning to code

To learn C# online with step-by-step instructions and know what to install, follow these paths and tools from Microsoft resources.

1. Install the required software on the PC

For a typical beginner setup on a local machine:

• Install the latest .NET SDK so C# apps can be built and run.
• Install Visual Studio Code as the code editor.
• Install either the C# extension or C# DevKit for C# support in Visual Studio Code.

These prerequisites are called out in multiple tutorials and learning paths:

• The “Build .NET applications with C#” learning path lists:
  • .NET SDK
  • Visual Studio Code
  • C# extension for Visual Studio Code
• Several C# tutorials list:
  • .NET SDK (for example, .NET 10 SDK)
  • Visual Studio Code
  • C# DevKit extension

Once these are installed, C# console apps and other .NET projects can be created and run locally.

2. Use step-by-step C# tutorials and learning paths

Microsoft Learn provides structured, guided content with hands-on exercises:

• For absolute beginners to C#:
  • “Tutorial: Explore the C# language” starting with a Hello World program and progressing through variables and text.
  • The broader “Introduction to C#” tutorial series, which includes:
    • Hello world
    • Numbers in C#
    • Tuples and types
    • Branches and loops
• For learning core language features and console apps:
  • “Create and run simple C# console applications (Get started with C#, Part 2)” learning path, which uses Visual Studio Code and covers:
    • Installing and configuring Visual Studio Code for C#
    • Calling methods from the .NET class library
    • Using if, else, and else if
    • Using arrays and foreach
    • Writing readable code
    • Guided and challenge projects to practice arrays, loops, and selection
  • “Tutorial: C# if statements and loops - conditional logic” for branching and looping in more depth.
  • “Tutorial: How to use integer and floating point numbers in C#” for numeric types and math.
• For object-oriented programming in C#:
  • “Explore object oriented programming with classes and objects” to learn classes, objects, and basic OOP patterns in a console app.
• For .NET and web development with C#:
  • “Build .NET applications with C#” learning path, which includes modules on:
    • Writing first C# code
    • Introduction to .NET
    • Managing dependencies with NuGet
    • Debugging .NET apps in Visual Studio Code
    • Working with files and directories
    • Creating a web API with ASP.NET Core controllers
  • “Tutorial: Get started with C# and ASP.NET Core in Visual Studio” if using the full Visual Studio IDE to build a web app.

3. Optional: Use GitHub Codespaces instead of local install

Many tutorials also support running entirely in the browser using GitHub Codespaces, which provides a ready-made C# development environment. In that case, only a GitHub account is needed; the .NET SDK and editor are preconfigured in the Codespace.

4. Suggested learning order

A practical sequence using these resources:

1. Install .NET SDK + Visual Studio Code + C# DevKit or C# extension.
2. Work through the “Hello world” and “Explore the C# language” tutorial.
3. Continue with:
   • Numbers in C#
   • Branches and loops
   • Tuples and types
4. Move to the “Get started with C#, Part 2” learning path to build console apps with arrays, loops, and conditions.
5. Learn classes and objects with the OOP tutorial.
6. When comfortable, follow the “Build .NET applications with C#” learning path and, if interested in web apps, the ASP.NET Core web app tutorial.

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References:

• Build .NET applications with C#
• Tutorial: Explore the C# language
• Introduction to C
• Explore object oriented programming with classes and objects
• Tutorial: C# if statements and loops - conditional logic
• Create and run simple C# console applications (Get started with C#, Part 2)
• Tutorial: Get started with C# and ASP.NET Core in Visual Studio
• Tutorial: How to use integer and floating point numbers in C

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