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Thread: Whats wrong with my code?

  1. #1
    Junior Member
    Join Date
    Mar 2011
    Thanked 0 Times in 0 Posts

    Default Whats wrong with my code?

    Suppose that you are given the following Driver class, which includes a main method:

    public class Driver
      public static void main(String[] args)
        double distance = 400.48;
        double fuel = 21.4;
        AutoTrip myTrip = new AutoTrip(distance, fuel);
        System.out.print("My car traveled " + myTrip.getDistance() + " miles ");
        System.out.println("on " + myTrip.getFuel() + " gallons of gasoline.");
        double mileage = myTrip.getMPG(); // get miles per gallon
        System.out.println("My mileage was " + mileage + ".");

    Now suppose that executing main produces the following output:

    My car traveled 400.48 miles on 21.4 gallons of gasoline.
    My mileage was 18.714018691588787.

    Implement the AutoTrip class so that it produces the indicated output.

    public class AutoTrip {
    private double distance;
    private int fuel;
    public AutoTrip(double miles, int gallons){
      distance = miles;
      fuel = gallons;
    public double getDistance(){return distance;}
    public int getFuel(){return fuel;}
    public double getMPG(){return (distance/fuel);}

    when i put this in the feedback says "The constructor you have written doesn't match the constructor call in the problem specification."
    Last edited by whattheeff; March 4th, 2011 at 05:31 PM.

  2. #2
    Join Date
    May 2010
    North Central Illinois
    My Mood
    Thanked 112 Times in 110 Posts

    Cool Re: Whats wrong with my code?

    Found problem:

    AutoTrip(double variable, int variable2)

    You called it with

    AutoTrip(double variable, double variable2);

    Change gallons in constructor to type double. Also, change return type for getFuel() to double now.

    Also change variable fuel in class AutoTrip to type double as well.

    Now that error should go away.
    Last edited by javapenguin; March 4th, 2011 at 05:37 PM.

  3. The Following User Says Thank You to javapenguin For This Useful Post:

    whattheeff (March 4th, 2011)

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