How to obey Law of Demeter?

Question

Any time I see articles about Law of Demeter the author never seems to give a solid example of how to obey this law. They all explain what it is and show an example of breaking

Answer 1

I'd have a Band answer the question who's playing this instrument?

public String whoIsPlaying(String instrument);

Then if you need a guitarist's name you'd say:

band.whoIsPlaying("guitar");

Nothing stops you from pinging other instruments as well.