An identifier is a sequence of characters used for representing the name of a variable, a class, a method, a property, a constant or an event.

• The first character of an identifier must be an alphabetic character, an underscore, or the dollar sign.
• The other characters can be any alphabetic character, any digit, an underscore, the dollar sign, or the question mark.

Here are some valid identifiers:

• A
• i
• Xyz1972
• Null?
• $Global_Var
• _DoNotUse
• Event_Handler

Some identifiers in Gambas are reserved keywords, and so cannot be used as variable names.

To prevent the compiler from interpreting an identifier as a reserved keyword, put it between braces, like that:

DIM {Default} AS String
DIM {Dim} AS Collection