Learn C# Fundamentals

Learn C# and .NET with an adaptive roadmap that fits your level, taking you from core programming and OOP to exception handling, LINQ, and concurrency to build efficient cross-platform applications.

Beginner

110 Lessons

16h 4min

Certificate of Completion

Learn C# and .NET with an adaptive roadmap that fits your level, taking you from core programming and OOP to exception handling, LINQ, and concurrency to build efficient cross-platform applications.

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

2 Assessments

293 Playgrounds

16 Quizzes

This course includes

2 Assessments

293 Playgrounds

16 Quizzes

Course Overview

C# and .NET power a wide range of modern software—from enterprise systems to desktop and cloud applications. As a cross-platform, open-source framework, .NET enables developers to design, build, and deploy applications across Windows, Linux, and macOS. This course adapts to your experience level and interests, allowing you to focus on what matters most to you. You can build a foundation in C# syntax and object-oriented programming, strengthen your skills with regular expressions for text processing, or exp...Show More

What You'll Learn

Develop applications using C# and the .NET framework

Understand and apply object-oriented programming principles

Work with regular expressions for pattern matching and text processing

Explore advanced C# features such as LINQ, async/await, and concurrency

Build scalable, maintainable applications across multiple platforms

What You'll Learn

Develop applications using C# and the .NET framework

Course Content

Getting Started

Get familiar with the .NET platform, its architecture, and writing your first C# program.

Course Overview

.NET Overview

Our First C# Program

Quiz Yourself: .NET Basics

C# Programming Basics

Unpack the core of C# basics, including program structure, variables, type casting, loops, and methods.

Structure of a C# Program

Variables and Data Types

Type Casting

Console I/O Conditionals Loops Methods Variable Scope Enumerations Tuples Quiz Yourself: C# Basics

Classes and OOP

Master the steps to effectively utilize classes, structs, and object-oriented programming features in C#.

Classes Structs Value vs. Reference Types Namespaces and Class Libraries Access Modifiers

Properties Method Overloading Static Members Constants and Read-Only Fields Operator Overloading Null Value Indexers Quiz Yourself: Classes and OOP

Classes and OOP II

Apply your skills to understand inheritance, type casting, virtual methods, abstract classes, and generics in C#.

Inheritance Additional Topics on Inheritance Type Casting and Classes Cast Operator Overloading Virtual Methods and Properties Hiding vs. Overriding a Method Abstract Classes System.Object Class

Generic Types Constraining the Type Parameters Generic Types and Inheritance Quiz Yourself: Classes and OOP II

Exception Handling

Take a closer look at managing and creating exceptions in C# using try, catch, and finally blocks.

Try...Catch...Finally Exception Types Creating and Throwing Exceptions Quiz Yourself: Exception Handling

First Assessment

Assessment

Delegates and Events

7 Lessons

See how C# handles delegates, events, anonymous methods, lambdas, and built-in delegate types.

Interfaces

6 Lessons

Master the steps to understanding and utilizing interfaces for structured, flexible C# code.

Additional Features

6 Lessons

Step through additional C# features like extension methods, partial classes, anonymous types, and local functions.

Collections

7 Lessons

Discover the logic behind dynamic and generic collections, including ArrayList, List<T>, and data structures like Stacks, Queues, Dictionaries, and ObservableCollection<T>.

10.

LINQ

5 Lessons

Break apart LINQ basics, common operations, deferred execution, and impactful collection manipulation methods.

11.

Working with Strings

4 Lessons

Apply your skills to handling strings, using StringBuilder efficiently, and mastering regular expressions.

12.

Working with Dates and Time

3 Lessons

Dig into C#'s DateTime struct for date manipulation and flexible formatting techniques.

13.

Multithreading and Asynchronous Programming

11 Lessons

Tackle multithreading and asynchronous programming, enhancing application responsiveness and efficiency.

14.

Reflection

4 Lessons

Build on understanding .NET reflection, exploring type information, application, and attribute data.

15.

Dynamic Binding

3 Lessons

Try out dynamic binding using Dynamic Language Runtime and ExpandoObject class in C#.

16.

Garbage Collection and Unmanaged Resources

7 Lessons

Grasp proper memory management, resource cleanup, and file handling in C# effectively.

Final Assessment

Assessment

17.

Next Steps

1 Lesson

Explore further application development with ASP.NET, WPF, Xamarin, and Unity in .NET.

18.

Appendix

2 Lessons

Grasp the fundamentals of setting up Visual Studio and creating reusable class libraries.

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

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