title: How is loose coupling achieved using interfaces in Java when an implementation class is mandatory and bound to interface contract?
body: <p>How is loose coupling associated with interfaces when we are bound to create an implementation class regardless? The implementation class is forced to implement all those methods defined in the interface. I don't understand how this allows for lose coupling? I'm new to object oriented programming and software design so if you could shed some light on this topic it would super helpful. An example would totally be icing on the cake.</p>