
TripSetter application is given a current speed measured
  in mi/hr, a trip distance measured in ft, and a trip duration measured in hr
  and displays the equivalent current speed in km/hr and the trip speed
  in both km/hr and mi/hr.
  The
Text class (that you used in PA1)
      contains functions that can be used
      to convert from a String to a number. 
    The
Dashboard class (that you used in Part d of PA1) 
      contains functions that can be used
      to display the current speed and trip speeds. In addition to the
      setSpeed() function that you have already used, it
      contains the following function:
      
setTripSpeed() is passed two double
      values. The first is the speed measured in km/hr and the
      second is the speed measured in mi/hr. This functions does
      not return anything (i.e., it is void).
      
      The system must satisfy the following physical requirements:
      
PR-1
      The application must be named TripSetter
      The system must satisfy the following operational requirements:
      
OR-1
      Command-line argument 0 must contain a String
      representation of the current speed in mi/hr, which may contain
      a decimal point.
      
OR-2
      Command-line argument 1 must contain a String
      representation of the trip distance in ft, without a decimal
      point.
      
OR-3
      Command-line argument 2 must contain a String
      representation of the trip duration in hr, which may contain
      a decimal point.
      
OR-4
      The application must use the Converter class
      for all conversions of units (e.g., from mi/hr to km/hr, from
      ft to mi).
      
OR-5
      Command-line argument 1 must be converted to an int.
      (That is, it must not be converted to a double.)
      
OR-6
      The application must pass the setSpeed() function
      in the Dashboard class the current speed in km/hr
      (calculated from command-line argument 0).
      
OR-7
      The application must pass the setTripSpeed()
      function in the Dashboard class the trip speed in
      km/hr and the trip speed in mi/hr  (calculated from
      command-line arguments 1 and 2).
      
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