Suppose a phone number, stored as a ten-character string (of digits only) called phoneNumber must be converted into a string that has parentheses around the area code.Which statement below will do that?
A) String newNumber ="("+
phoneNumber. substring (3,0)+") ";
B) String newNumber ="("+")"+ phoneNumber;
C) String newNumber ="("+
phoneNumber. substring (1,3)+")"+ phoneNumber. substring (3,7);
D) String newNumber ="("+phoneNumber.substring (0,3)+")"+ phoneNumber. substring(3, 10);

Question

Suppose a phone number, stored as a ten-character string (of digits only) called phoneNumber must be converted into a string that has parentheses around the area code.Which statement below will do that? 
A) String newNumber ="("+
phoneNumber. substring (3,0)+") ";
B) String newNumber ="("+")"+ phoneNumber;
C) String newNumber ="("+
phoneNumber. substring (1,3)+")"+ phoneNumber. substring (3,7);
D) String newNumber ="("+phoneNumber.substring (0,3)+")"+ phoneNumber. substring(3, 10);

Quizplus · Accepted Answer

Option D is the correct answer as it correctly extracts the area code from the first three characters of the phoneNumber string and places parentheses around them, followed by the remaining seven digits. Option A is incorrect because the substring method takes the start index first, then the end index. Option B is incorrect as it only puts parentheses around an empty string, and does not include the area code. Option C is incorrect because it puts parentheses around the first three digits and then includes the remaining seven digits, but does not include any space or hyphen.

Suppose a Phone Number, Stored as a Ten-Character String (Of