Microsoft .NET Framework offers to software developers a rich set of classes with a wide range of functionality. The Console, Math, and Convert classes that we met in the previous chapter are just three of more than 2,500 .NET classes that may be used in our .NET applications. Here is a partial list of main programming fields where you may find the .NET class library very helpful:
Base class library (basic functionality such as strings, arrays, and formatting)
Networking
Security
Remoting
Diagnostics
I/O
Database
XML
Web services that allow us to expose component interfaces over the Internet
Web programming
Windows user interface
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