Using a Car Object

To see if the design for Car is what you want, use it in a program. If Car is designed well, writing the program should be easy.

import java.util.Scanner ;
import Car;

class MilesPerGallon
{
  public static void main( String[] args ) 
  {
    Scanner scan = new Scanner(System.in);

    double startMiles, endMiles, gallons;

    System.out.print("Enter first reading: " ); 
    startMiles = scan.nextDouble();

    System.out.print("Enter second reading: " ); 
    endMiles = scan.nextDouble();

    System.out.print("Enter gallons: " ); 
    gallons  = scan.nextDouble();

    Car car = new Car( , ,   );

    System.out.println( "Miles per gallon is "  + car.calculateMPG() );
  }
}

User interaction is done just as in previous programs. All input values are double precision.