Question

What are Identifiers in java? State the rules for using Identifiers.

Answer 1

Identifiers are names of variables, methods, classes, packages, and interfaces in Java.

The set of rules to be kept in mind are -

• It can have any alphabet (capital or small), digits, underscore and a dollar sign characters.
• It should not begin with digits or should not contain any special characters.
• It cannot have space between it.
• It must not be a keyword.
• It can be of any length.