OOP (course 3): Inheritance, Abstract Classes, Interfaces and other amazing things

Interfaces

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Challenge 2 / 2

Look at the following abstract classes and interfaces:

abstract class AbstractShip
{
    protected function fly()
    {
        print "I'm flying!";
    }
}

interface ShipInterface
{
    abstract public function getType();

    abstract public function getName();
}

interface WeaponShipInterface
{
    public function getWeapon();
}

We want to be sure that our RebelShip class contains all these methods: fly(), getType(), getName(), and getWeapon(). How could we achieve it?

class RebelShip extends AbstractShip implements ShipInterface, WeaponShipInterface
{
}

class RebelShip implements AbstractShip, ShipInterface, WeaponShipInterface
{
}

class RebelShip extends AbstractShip, ShipInterface, WeaponShipInterface
{
}

It's impossible with the current structure because a class can extend only 1 abstract class and implement only 1 interface, not more

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