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It is impossible gain proficiency in any programming language without first learning some the basics. Perhaps the most basic aspect of programming involves the use of variables and constants. Even the most advanced and impressive programs from high end video games to enterprise commerce applications use variables in one form or another. In this chapter of [[C# Essentials]] we will cover everything that a C# programmer needs to know about variables and constants.
== What is a C# Variable? ==
Note that casting is only possible on numerical data types. It is not, therefore, possible to perform casts on ''string'', or ''bool'' variables.