Question

two rules to create identifier​

Answer 1

Answer:

Each identifier must have at least one character.

The first character must be picked from: alpha, underscore, or dollar sign. The first character can not be a digit.

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Answer 2

Rules for naming identifiers

• A valid identifier can have letters (both uppercase and lowercase letters), digits and underscores.

• The first letter of an identifier should be either a letter or an underscore.

• You cannot use keywords like int , while etc. as identifiers.

• There is no rule on how long an identifier can be.