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

question 20

Multiple Choice

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);

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Definitions:

Protons

Positively charged subatomic particles found in the nucleus of an atom, defining the element's atomic number.

Osmium

A dense, hard, bluish-white transition metal in the platinum group that is the most dense naturally occurring element.

Isotope

A variant of a particular chemical element which differs in neutron number, though it shares the same number of protons.

Electrons

Negatively charged subatomic particles with a very small mass, found orbiting the nucleus of an atom.