6.3.1: Methods: Factoring out a unit-conversion calculation. Write a method so that the main() code below can be replaced by the simpler code that calls method mphAndMinutesToMiles(). Original main(): public class CalcMiles { public static void main(String [] args) { double milesPerHour; double minutesTraveled; double hoursTraveled; double milesTraveled; milesPerHour