Identifer refers
to name of the function, name of
the variable and name of the array.
Identifiers are user defined names and
consists of sequence of alphabet, digit or underscore.
The
underscore is also permitted in identifiers.
Ø
Rules for constructing identify-
1. Identify
is any valid combination of alphabet,
digit or underscore.
2. Identifier
must begin with the alphabet, underscore.
3. Commas
and blank are not allowed to construct the identifiers.
4. An
identifier should not be a keyword.
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