Question

Rules to write identifier ?​

Answer 1

Answer:

PʟEASE ʀEFEʀ TO TʜE ATTACʜMEɴT .

Answer 2

Identifiers

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

Rules for naming an Identifier in Java

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