C# Basics Tutorial for Beginners

1. What is C#?

Learn what C# is, its advantages, how to install and use it, and why it's a great choice for building modern applications in this 2026 guide.

2. C# Roadmap

Follow this step-by-step roadmap to learn C# in 2026. From programming basics to advanced topics, this guide will help you master C# at your own pace.

3. Hello World Example

Learn how to write, build, and run your first C# program with this simple "Hello World" example. Understand key concepts like terminal, output, and building a project.

4. Variables

Learn all about variables in C#, from basic declarations to types, naming conventions, and scope. Explore common mistakes and how to avoid them with this in-depth guide.

5. Data Types

Learn about C# data types, including value types and reference types, their memory usage, size, and how to choose the right data type for your programs.

6. If Else

Learn how to use if, else, and else if statements in C# with real-world examples. Explore logical operators, nested conditions, and common mistakes to avoid.

7. Switch Case

Learn how to use the switch statement in C#, including the latest switch expressions in C# 8.0, with practical examples, advantages, and common mistakes to avoid.

8. For Loop

Learn how to use the for loop in C# with practical examples, including basic loops, nested loops, array iteration, and common mistakes.

9. While, Do While

Learn the key differences between the while and do-while loops in C#. Understand when to use each loop type with real-world examples, syntax, and common mistakes to avoid.

10. Methods

Learn how to write and use methods in C#, including creating methods with parameters, return types, and best practices. Explore method overloading, passing by reference, and common mistakes to avoid.

11. Array

Learn how to declare, access, modify, and manipulate arrays in C#. This guide covers basic arrays, multidimensional arrays, jagged arrays, and array methods like sorting and reversing, with clear examples.

12. List

Learn how to use C# List<T> with detailed examples. Understand how to add, remove, access, and manage dynamic collections using built-in list methods effectively.

13. Dictionary

Learn how to use C# Dictionary with detailed examples. Understand key-value pairs, adding, removing, accessing data, and best practices for efficient data handling in C# applications.

14. String

Learn the most commonly used C# string operations including concatenation, substring, replace, split, and comparison with clear examples and best practices for efficient string handling.

15. ReadLine

Learn how to use Console.ReadLine in C# to take user input, convert data types, validate input safely, and build interactive console applications with practical examples.