Learn C# - 10 Code Examples & CST Typing Practice Test
C# (C-Sharp) is a modern, object-oriented, multi-paradigm programming language built by Microsoft for the .NET platform. It is designed for productivity, type safety, performance, and building scalable applications across desktop, web, mobile, gaming, and cloud systems.
Learn CSHARP with Real Code Examples
Updated Nov 17, 2025
Practical Examples
Build REST APIs with ASP.NET Core
Create cross-platform mobile apps with MAUI
Develop games with Unity
Build cloud services using Azure functions
Troubleshooting
Resolve NuGet package conflicts
Fix null reference exceptions
Handle async deadlocks
Resolve configuration or DI errors
Testing Guide
Unit tests with xUnit or NUnit
Mocking with Moq
Integration tests in ASP.NET
Load testing with k6/JMeter
Deployment Options
Self-contained EXE
Docker container
Azure App Service
Kubernetes deployment
Tools Ecosystem
ASP.NET Core
Entity Framework Core
Visual Studio
NuGet package manager
xUnit/NUnit testing frameworks
Integrations
SQL Server / PostgreSQL
Azure services (Functions, Cosmos DB)
RabbitMQ/Kafka
Redis caching
Docker/Kubernetes
Productivity Tips
Use Visual Studio shortcuts
Use records & init setters
Use global usings
Use LINQ effectively
Challenges
Build a Todo API with ASP.NET Core
Create a Unity 2D game
Build a real-time chat app with SignalR
Create a microservice with Azure Functions
Frequently Asked Questions about C#
What is C#?
C# (C-Sharp) is a modern, object-oriented, multi-paradigm programming language built by Microsoft for the .NET platform. It is designed for productivity, type safety, performance, and building scalable applications across desktop, web, mobile, gaming, and cloud systems.
What are the primary use cases for C#?
Enterprise backend systems. Web APIs (ASP.NET Core). Unity game development. Desktop software (WPF/WinUI). Cloud-native microservices on Azure. Cross-platform mobile apps (MAUI/Xamarin)
What are the strengths of C#?
Excellent tooling and developer productivity. High performance with modern .NET. Strong type safety. Great for enterprise systems. Massive ecosystem (ASP.NET, Unity, MAUI)
What are the limitations of C#?
Heavily tied to Microsoft ecosystem historically. Slightly more complex runtime model. Not ideal for low-level systems. Unity uses older C# versions at times
How can I practice C# typing speed?
CodeSpeedTest offers 10+ real C# code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.