Rules for variable declaration

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 Rules for variable declaration in C#

·        A variable name must begin with a letter or underscore

·        Variables in C# are case sensitive

·        They can be constructed with digits and letters

·        No special symbols are allowed other than underscores

·        Variable name cant be a C# keyword

Example

 Variable name are : sum, Height, _value, and abc123, etc. are some examples of the variable name

 

How to declare a variable in C#?

The Syntax for declaring a variable in C# is as follows:

Syntax:

data_type variable_name; 

Here, data_type is the type of data to be stored in the variable, and variable_name is the name given to that variable

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