Java: Format a string as a telephone number [closed]

Answer 1

Is this homework? I'll leave it as an exercise to John to covert from Perl to Java. Should be simple; especially with something like http://www.regexbuddy.com/.

:~$ perl -pe 's/\D//g;s/^(\d{3})(\d{3})(\d{0,4})(\d*)/(\1) \2-\3/'
5551234567
(555) 123-4567

Answer 2

String.format("(%s) %s-%s", number.substring(0, 3), number.substring(3, 6), 
          number.substring(6, 10));