Oh, HelloWorld @ C#

using System;

class HelloWorld
{
public static void Main()
{
Console.WriteLine("Hello, world!");
}
}

Hello World

The first programming language I learned is Pascal, and no exception the first program I wrote is HelloWorld. Things happened again for three times when I learned C, C++ and Java. Even I onced wrote a HelloWorld m-file with Matlab. I am waiting for my first C# program, and I hope it will be HelloWorld again since I am a traditional man.