Question

Which of the following would be the most appropriate name for the following procedure (currently named MYSTERY), where number is any number and the procedure CHECK (number) returns true if the number is an integer and false if not?

PROCEDURE MYSTERY (number)
{
IF (number > 0 AND CHECK (number))
{
RETURN (true)
}
RETURN (false)
}
Option 1: PROCEDURE IS_INTEGER (number)
Option 2: PROCEDURE CHECK_INTEGER (number)
Option 3: PROCEDURE VALIDATE_INTEGER (number)
Option 4: PROCEDURE VERIFY_INTEGER (number)

Answer 1

The procedure checks if the number is a positive integer. None of the given options perfectly describe the procedure as they miss the positivity aspect, but Option 1 is the closest match.

Step-by-step explanation:

The procedure in question examines whether a number is both greater than zero and an integer. Utilizing the procedure CHECK (number), it returns true if the number is a positive integer and false otherwise. Considering the actions carried out by this procedure, the most fitting name would be IS_POSITIVE_INTEGER (number). This is because Option 1 (IS_INTEGER) does not specify the positivity aspect, and Options 2 and 3 (CHECK_INTEGER, VALIDATE_INTEGER) could imply broader validations without the positivity constraint. Option 4 (VERIFY_INTEGER) is closer but also lacks the positivity description. However, none of the given options perfectly describe the procedure, which should ideally indicate both integer and positive conditions.