Session 3: In-Depth Explanation

Lecture Topics:

• Console Applications and Class Libraries (.NET Core)
• C# Basics
• Project References, using
• Classes
• Data Types in .NET and CTS Equivalents
• Methods
  • Method Overloading
  • Optional Parameters
  • Named Parameters and Positional Parameters
  • Using params
  • Local Functions
• Properties
  • get, set
  • Readonly Properties
  • Using Property Accessors to Create Readonly Property
• Constructors
• Object Initializer
• Destructors
• Discussion on IDisposable (to be implemented after interfaces)

Lab:

• Create a class that has Properties, Fields, Methods, Constructors (Trainer can specify any class of his choice, e.g., Student, Employee, etc.)

Lecture: Detailed Explanation

1. Console Applications and Class Libraries (.NET Core)

• Console Applications:

  • A .NET 6 console application is a standalone executable (.exe) with a Main method as the entry point.

  • Created in Visual Studio 2022 via the "Console App (.NET Core)" template.

  • Example:

    // Program.cs
    Console.WriteLine("Hello, .NET 6 Console App!");
    
    

  • Key Points:

    • Uses Top-Level Statements in .NET 6, simplifying the Main method:

      // Implicitly generates static void Main()
      Console.WriteLine("Simplified syntax in .NET 6");
      
      

    • Suitable for scripts, tools, or learning C# fundamentals.