Thingtwo496/JavaCalculator — pull request #3 by Thingtwo496 (2014-08-07 20:40:40+00:00)
Title: Added Subtraction Functionality

Added the ability to do subtraction. Also re worked the way the program
gets the numbers for the operation. Now there is a method called
GetNumber that will prompt the user to enter a number and then returns
it. These numbers are then passed into the addition or subtraction
methods and the result is returned.