Inheritance and polymorphism

// INHERITANCE AND POLYMORPHISM
void main(){
  //Car myCar = Car();
  
//   myCar.drive();
//   print (myCar.numberOfSeats);
  
//   ElectricCar myNewCar = ElectricCar ();
  
//   print(myNewCar.numberOfSeats);
  
  LevitatingCar myLimo = LevitatingCar();
  
  myLimo.drive();
  
  SelfDrivingCar myTesla = SelfDrivingCar('Going towards Thika Road');
      myTesla.drive();
}

class Car {
  
  int numberOfSeats = 5;
  
  void drive (){
    print('turn wheels');
  }
}

// The electric car class can inherite the properties 
//of the car class by using extends
class ElectricCar extends Car {
  int batteryLevel = 100;
  
  void recharge (){
    batteryLevel = 100;
  }
}

class LevitatingCar extends Car {
  @override
  
  void drive (){
    print('grinde forward');
  }
}

class SelfDrivingCar extends Car {
  
  String destination;
  
  SelfDrivingCar ( String userDestination){
    destination = userDestination;
    
    @override
    void drive (){
      
      super.drive(); // calling the function of the Car parent class
      
      print('sterring towards $userDestination');
    }
    
  }
}