Question

Define identifiers.................................

Answer 1

An Indetifier can only have alphanumeric characters( a-z , A-Z , 0-9 ) and underscore( _ ). The first character of an identifier can only contain alphabet( a-z , A-Z ) or underscore ( _ ). Identifiers are also case sensitive in C. For example name and Name are two different identifier in C.

In C, C++, C# and other programming languages, an identifier is a name that is assigned by the user for a program element such as variable, type, template, class, function or namespace. It is usually limited to letters, digits and underscores. Identifiers are used to identify a program element in the code.

Answer 2

Answer:

Explanation:

An identifier prefixed with "@" is called a verbatim identifier. Although prefixing "@" allows for the use of keywords, which helps in interfacing with other programming languages, it is not a recommended practice.

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