C Sharp/Data Types

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[edit] Introduction to predefined types

Almost everything in C# invloves types. if you want to add two numbers togther you will need to specify a type for each variable. A "type" tells the computer what kind of variable it is dealing with. For example, decimals, whole numbers, strings (words), etc; in C# these types must be declared or the compiler will not know what kind of variable it's dealing with. In the C# language it can only calculate decimals with decimals, string with strings, whole numbers with whole numbers, etc. This is why types must be declared.

[edit] User defined Types

UDTs are types that are created by the programmer. They are custom types and have proved to be very useful application development. You will unlock the true power of C# when you learn how to create UDTs by using classes. UDTs will be discussed in greater detail later in this tutorial.

[edit] List of C# Data Types

Here are the C# predefined types: