Question

Identify legal Java identifier

Answer 1

Identifiers are legal only if-

• There is no space present.
• The name is not a keyword.
• The name must not starts with a digit.
• It must not contain special characters other than dollars and underscores.

Answer 2

Answer:

isLetter(ch) returns true.

getType(ch) returns LETTER_NUMBER.

the referenced character is a currency symbol (such as '$')

the referenced character is a connecting punctuation character (such as '_').

Explanation: