Does C# support a variable number of arguments?

Yes, using the params keyword. (More...)

Params keyword is used to accept variable number of parameters.

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VALUE (More...)

No

C# does not support multiple inheritance. A class can inherit from maximum one base class, although it can implement any number of interfaces. Like Java, C# does not support multiple inheritance, meaning that classes cannot inherit from more than one class (More...)

The .NET Framework is language neutral; virtually any language can target the .NET Framework. Currently, you can build .NET programs in a number of languages, including C++, Microsoft® Visual Basic.NET, _JScript®, and Microsoft's newest language-C#. A large number of third-party languages will also be available for building .NET Framework applications. These languages include COBOL, Eiffel, Perl, Python, Smalltalk, and others. (More...)

The .NET Framework is language neutral; virtually any language can target the .NET Framework. Currently, you can build .NET programs in a number of languages, including C++, Microsoft® Visual Basic.NET, _JScript®, and Microsoft''s newest language-C#. A large number of third-party languages will also be available for building .NET Framework applications. These languages include COBOL, Eiffel, Perl, Python, Smalltalk, and others. (More...)

Two. One queue is used for actual storing of data and another for storing priorities. (More...)

A revision and build number in an assemblies is called Version Number.

There are Major and Minor Version number in an assembly. you can change this version number in assemblyinfo.cs file
usually version number looks like this in assemblyinfo.cs
1.0.*

The common language run time uses these numbers to enforce version policy. (More...)

No. About the closest you can come is using the internal keyword, which allows access within the current assembly. But, there is no way to specify specific a class that knows about another class's private implementation. (More...)

Yes, from the standard toolbar select Tools | Options.This will open the Options dialog; select the Text Editor folder, pick the language, and click on the check box for line numbering under the display section. (More...)