class Freighter extends TransportVehicle {

  private double flightLength;

  public Freighter(String manufacturer, String model, int loadCapacity, double flightLength) {
    super(manufacturer, model, loadCapacity);
    this.flightLength = flightLength;
  }

  // Overridden the toString method to specify the Vehicle object
  @Override
  public String toString() {<FILL_FUNCTION_BODY>}

}

    return "Freighter{ "
            + super.toString()
            + " ,"
            + "flightLength="
            + flightLength
            + '}';
  
<methods><variables>private int loadCapacity