C Sharp (programming language)

C#
Appeared in	2000; 24 years ago
Designed by	Microsoft
Developer	Microsoft
Usual filename extensions	.cs

The title of this article is wrong due to some technical limitations. The right title is C# (programming language).

C# (pronounced "see sharp") is a computer programming language. It is developed by Microsoft. It was created to use all capacities of the .NET platform. The first version was released in 2001. The most recent version is C# 11, which was released in November 2022, alongside .NET 7. C# is a modern language. C#'s development team is led by Anders Hejlsberg, the creator of Delphi.

Execution Platform

The Microsoft .NET platform;
Free implementation of C# and .NET like Mono developed by Novell, or dotGNU developed by the Free Software Foundation.

Today, C# can be run on most platforms (Windows, Linux, macOS, etc.) without changing the source code. C# can be run on the Xbox 360 platform with a special framework.

Syntax

C# code is similar to C++ and Java code. The CLR (Common Language Runtime) is needed in order to run a C# program.^[1]

"Hello, World!" example

<syntaxhighlight lang="csharp"> /* This is a simple program in C#.

* It simply shows "Hello, World!" on the screen.
*/

using System; namespace HelloWorld {

 class Hello
 {
   static void Main()
   {
     Console.WriteLine("Hello, World!");
     
     // The piece of code below is optional, but is needed to prevent the program from closing immediately.
     
     Console.WriteLine("Press any key to exit.");
     Console.ReadKey();
   }
 }

}

</syntaxhighlight>

Basic input example

<syntaxhighlight lang="csharp"> /*

* This program asks for input from the user, i.e. a name. It then prints "Hello [name]", replacing [name] with whatever the person typed in.
*/

using System; namespace HelloWorld {

 class Hello
 {
   static void Main()
   {
     Console.WriteLine("Hello, please type in your name:");
     string name = Console.ReadLine();
     Console.WriteLine("Hello {0}",name);
     Console.ReadKey();
   }
 }

}

</syntaxhighlight>