C# Programming Tutorial

C# Basics

1 Introduction to C# and .NET 5 min 2 C# Environment Setup (SDK, VS Code, Visual Studio) 5 min 3 Variables, Data Types, and Literals 5 min 4 Operators and Expressions 5 min 5 Control Flow: if, switch, loops 5 min 6 Arrays and Strings in C# 5 min

Object-Oriented Programming

7 Classes and Objects 5 min 8 Constructors and Destructors 5 min 9 Inheritance and Polymorphism 5 min 10 Interfaces and Abstract Classes 5 min 11 Encapsulation and Access Modifiers 5 min 12 Static Members and Sealed Classes 5 min

Advanced C#

13 Exception Handling (try/catch/finally) 5 min 14 Generics and Constraints 5 min 15 Delegates and Events 5 min 16 Lambda Expressions and LINQ Introduction 5 min 17 Async and Await in C# 5 min 18 File I/O and Serialization 5 min 19 Records, Pattern Matching, and Nullable Reference Types 5 min 20 Memory, Span<T>, and Performance Tuning in C# 5 min

Interview Preparation

21 Top C# Interview Questions (Junior to Mid) 5 min 22 Value Type vs Reference Type Deep Dive 5 min 23 C# Coding Challenges for Practice 5 min