In some programming languages, an identifier is permitted to be a letter followed by any number of letters or digits. If L and D denotes the set of letters and digit respectively. Which of the following expression defines an identifier?
(A) (L + D) *
(B) (L.D) *
(C) L(L + D) *
(D) L(L.D) *
Answer: (C)
Explanation: Clearly, option (C) is correct as a valid identifier can only start with a letter followed by any number of letters or digits.
L(L + D) * can only generate the strings for a valid identifier.
Quiz of this Question
Whether you're preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape,
GeeksforGeeks Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we've already empowered, and we're here to do the same for you. Don't miss out -
check it out now!
Last Updated :
20 Mar, 2018
Like Article
Save Article