C#
Apps, games and services with .NET.
C# is a modern, type-safe language from Microsoft, and .NET is the free, open-source platform that runs it on Windows, macOS and Linux. With one language you can build web services with ASP.NET Core, games with Unity, and desktop and mobile apps. This course starts from zero with .NET 10 and C# 14: your first program in a single file, variables and types, decisions and loops, methods, then classes and records, lists and LINQ, null safety, async code and a small web API.
Every program in the course was run for real, and every output you see is exactly what it prints.
- Lessons
- 14
- Time
- 2 h
- Level
- Beginner
- Bronze open
- Silver open
- Gold locked
Ready to prove it?
Three exams are waiting: Bronze, Silver and Gold.
What you'll be able to do
- Write and run C# programs, from a single file to a full .NET project
- Use types,
var, string interpolation, loops andswitchexpressions with confidence - Model data with classes and records, and handle null safely
- Filter, sort and group collections with LINQ
- Write async code and build a small JSON web API with ASP.NET Core
The journey
1 Module 1C# basics
What .NET is, your first program, values and types, decisions, loops and methods.
0 / 52 Module 2Objects, LINQ and the web
Classes and records, collections and LINQ, null safety, async code and a minimal web API.
0 / 53 Module 3Next steps
Where to go after this course: bigger programs, tests, databases and games.
0 / 4