C Sharp: Difference between revisions
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C# is deliberately similar to the [[Java programming language]] and [[Java platform]]<ref>Mark Johnson, [http://www.javaworld.com/jw-11-2000/jw-1122-csharp1.html C#: A language alternative or just J--?], JavaWorld.com</ref>. | C# is deliberately similar to the [[Java programming language]] and [[Java platform]]<ref>Mark Johnson, [http://www.javaworld.com/jw-11-2000/jw-1122-csharp1.html C#: A language alternative or just J--?], JavaWorld.com</ref>. | ||
In C# 3.0, Microsoft | In C# 3.0, Microsoft added the 'var' keyword, which allows type inference<ref>Sahil Malik, [http://www.developer.com/net/csharp/article.php/3561756 A Preview of What's New in C# 3.0], developer.com</ref>. For instance, one might declare: | ||
<code>var fooString = "Hello, World!";</code> | <code>var fooString = "Hello, World!";</code> | ||
when in previous versions, one might have to write: | when in previous versions, one might have to write: | ||
Revision as of 10:02, 3 April 2022
C# is a main-stream, general-purpose programming language developed at Microsoft. C# is fully object-oriented and is under continuous active development by Microsoft. C# programs are fully portable across all recent Microsoft operating systems since Windows 2000/XP (and partially on Windows 98). The latest version of C# (and the virtual machine software it runs on, .NET Framework v6.0) as of April 2022 is 10.0. These were released in 2021.
To execute on Windows, C# programs require the installation of the .NET Framework Common Runtime (CLR), a virtual machine that hides operating system details. The runtime, as it is sometimes called, is available both for Windows client computers and Microsoft Web servers. C# programs consist of .exe or .dll files, each containing Common Intermediate Language (CIL) instructions which will execute in the CLR, a manifest (table of contents), metadata pertaining to the program, and (possibly) encapsulated resources such as images or audio.
C# is deliberately similar to the Java programming language and Java platform[1].
In C# 3.0, Microsoft added the 'var' keyword, which allows type inference[2]. For instance, one might declare:
var fooString = "Hello, World!";
when in previous versions, one might have to write:
string fooString = "Hello, World!";
Standards and Implementations
C# is standardized by ECMA (the ECMA-334 standard) and by ISO/IEC (the ISO/IEC 23270 standard). Microsoft’s C# for the .NET Framework is a conforming implementation of both of these standards. An independent version of the Common Language Runtime (not developed by Microsoft) is available as a result of the open source Mono Project[3]; it provides software to develop and run .NET applications on Linux, Solaris, Mac OS X, Windows, and Unix.
References
- ↑ Mark Johnson, C#: A language alternative or just J--?, JavaWorld.com
- ↑ Sahil Malik, A Preview of What's New in C# 3.0, developer.com
- ↑ Mono Project, sponsored by Novell.