class AircraftNotFoundException extends RuntimeException
{
    public AircraftNotFoundException(int i) {
        super("Не найден объект по позиции " + i);
    }
    public AircraftNotFoundException() {
        super();
    }
    public AircraftNotFoundException(String message) {
        super(message);
    }
    public AircraftNotFoundException(String message, Throwable cause) {
        super(message, cause);
    }
}