API Reference

This section provides detailed information about the GreetingApp functionality.

Program.cs

The main entry point of the application.

Main Method

The application accepts command line arguments and processes them as follows:

// Check if a name was provided as a command line argument
string greeting;
if (args.Length > 0 && !string.IsNullOrWhiteSpace(args[0]))
{
    greeting = $"Hello, {args[0]}!";
}
else
{
    greeting = "Hello!";
}

// Print the greeting
Console.WriteLine(greeting);

// Print the current date and time
Console.WriteLine($"Current date and time: {DateTime.Now:yyyy-MM-dd HH:mm:ss}");

Input Parameters

Output

The application outputs:

1. A greeting message (personalized if name provided)
2. Current date and time in yyyy-MM-dd HH:mm:ss format

Examples

Default greeting:

$ dotnet run --project src/GreetingApp
Hello!
Current date and time: 2025-01-27 12:34:56

Personalized greeting:

$ dotnet run --project src/GreetingApp -- "Matthew"
Hello, Matthew!
Current date and time: 2025-01-27 12:34:56

Project Configuration

The application is configured as a .NET console application:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
</Project>

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