Chapter 10, Problem 3FTE

// Superclass

  public class Vehicle

  {

   private double cost;

   public Vehicle (double c)

   {

     cost = c;

   }

   (Other methods …)

  }

  // Subclass

  public class Car extends Vehicle

 {

  private int passengers;

  public Car (int p)

  {

    passengers = c;

  }

  (Other methods …)

 }