Continuing the theme from the previous video, here we examine how to utilize classes that have been built by Microsoft and added to the .NET Framework Class Library (FCL, also known as the Base Class Library or BCL), a "library" of classes with methods and properties to handle virtually every low-level task involving your interaction with the display, use of memory, use of the network, the phone's built-in capabilities, such as GPS, the phone's flash drive, and more. Bob explains topics including, how to think about the Class Library as "bundles of related functionality," how to work with Static classes and methods.
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