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Hello world in C#

C# is an object oriented programming language, so the function must be in a class. The name of the class can be anything, but the function must be called "main". Main can either return int, or be a void function. When creating a console program int is mostly used as this allows the program to return an error to the environment. Main doenst need any parameters or a string array (string[]) that contains the paramaters for the program.

<font color="blue">using</font> System;
 <font color="blue">public static class</font> Program
 {
   <font color="blue">public static void</font> Main()
   {
     Console.WriteLine("Hello World!");
   }
 }

This will write "Hello World!" to a console window.