//------------------------------------------------------------------------
//  class MotorVehicle
//------------------------------------------------------------------------
public class MotorVehicle {
  protected String licensePlate;      // e.g. "New York A456 324"
  protected double speed;             // kilometers per hour
  protected double maxSpeed;          // kilometers per hour
  protected String make;              // e.g. "Harley-Davidson", "Ford"
  protected String model;             // e.g. "Fatboy", "Taurus"
  protected int    year;              // e.g. 1998, 1999, 2000, 2001, etc.
  protected int    numberPassengers;  // e.g. 4
  protected int    numberWheels;

  // constructors

   public MotorVehicle()
   {}

  public MotorVehicle(String licensePlate, double maxSpeed,
   String make, String model, int year, int numberOfPassengers) {
    this(licensePlate, 0.0 ,maxSpeed, make, model, year, numberOfPassengers);
  }

//  public MotorVehicle(String licensePlate, double speed, double maxSpeed,
//   String make, String model, int year, int numberOfPassengers) {
//    this(licensePlate, speed, maxSpeed, make, model, year, numberOfPassengers);
//  }

  public MotorVehicle(String licensePlate, double speed, double maxSpeed,
   String make, String model, int year, int numberOfPassengers) {
    // I could add some more constraints like the
    // number of doors being positive but I won't
    // so that this example doesn't get too big.
    this.licensePlate = licensePlate;
//    this.make = make;
    this.model = model;
    this.year = year;
    this.numberPassengers = numberOfPassengers;
    if (maxSpeed >= 0.0) {
      this.maxSpeed = maxSpeed;
    }
    else {
      maxSpeed = 0.0;
    }
    if (speed < 0.0) {
      speed = 0.0;
    }
    if (speed <= maxSpeed) {
      this.speed = speed;
    }
    else {
      this.speed = maxSpeed;
    }
  }

  // getter (accessor) methods
  public String getLicensePlate() {
    return this.licensePlate;
  }
  public String getMake() {
    return this.make;
  }
  public String getModel() {
    return this.model;
  }
  public int getYear() {
    return this.year;
  }
  public int getNumberOfPassengers() {
    return this.numberPassengers;
  }
  public int getNumberOfWheels() {
    return this.numberWheels;
  }
  public double getMaxSpeed() {
    return this.speed;
  }
  public double getSpeed() {
    return this.maxSpeed;
  }

  // setter method for the license plate property
  protected void setLicensePlate(String licensePlate) {
    this.licensePlate = licensePlate;
  }
  // accelerate to maximum speed
  // put the pedal to the metal
  public void floorIt() {
    this.speed = this.maxSpeed;
  }
  public void accelerate(double deltaV) {
     this.speed = this.speed + deltaV;
     if (this.speed > this.maxSpeed) {
       this.speed = this.maxSpeed;
     }
     if (this.speed < 0.0) {
       this.speed = 0.0;
     }
  }
}