static void Main(string[] args)
{
AirTrafficController controlCenter = new AirTrafficController();
Flight boeing101 = new Flight(controlCenter);
Runway mainRunway = new Runway(controlCenter);
controlCenter.registerFlight(boeing101);
controlCenter.registerRunway(mainRunway);
boeing101.getReady();
mainRunway.land();
boeing101.land();
Console.ReadLine();
}
public void registerRunway(Runway runway)
{
this.runway = runway;
}