public class Quadcopter
{
   private double xLocation, yLocation, xDestination, yDestination;
   private double maxSpeed;

   public void setLocation(double x, double y)
   {
      xLocation = x;
      yLocation = y;
   }

   public void setMaxSpeed(double maxSpeed)
   {
      this.maxSpeed = maxSpeed;
   }

   public void setDestination(double x, double y)
   {
      xDestination = x;
      yDestination = y;
   }

   public double getXDestination()
   {
      return xDestination;
   }

   public double getYDestination()
   {
      return yDestination;
   }

   public double distanceToDestination()
   {
      double dx = xLocation - xDestination;
      double dy = yLocation - yDestination;
      double dist = Math.sqrt(dx * dx + dy * dy);
      return dist;
   }

   public double timeToDestination()
   {
      double distToTravel = distanceToDestination();
      double time = distToTravel / maxSpeed;
      return time;
   }
}