The Airbus plane

class Plane {}
class Airbus extends Plane {}

public class Main {

    void fly(Plane p) {
        System.out.println("I'm in a plane");
    }
    void fly(Airbus a) {
        System.out.println("I'm in the best Airbus!");
    }

    public static void main(String[] args) {

        Main m = new Main();

        Plane plane = new Plane();
        m.fly(plane);

        Airbus airbus = new Airbus();
        m.fly(airbus);

        Plane planeAirbus = new Airbus();
        m.fly(planeAirbus);

    }
}


///////////////
////OUTPUT/////
///////////////

I'm in a plane
I'm in the best Airbus!
I'm in a plane

Process finished with exit code 0