Object Relations:my friends car can run on my car's tyre....!

See how my friends car can run on my car's tyre!

Car myFerrai = new Car();

Car myFriendsFerrari = new Car();

Tyre tyre = myFerrari.removeTyre();

Tyre flatTyre = myFriendsFerrari.replaceTyre(tyre);

myFriendsFerrari.drive();

And with the Building and Floor, No you cannot exchange the Floor(s)