The EJB 3.0 draft specification addresses the multipleinterface problem directly by introducing a Single Business interface, no local or remote interfaces.
Internet with the characteristics of hypertext, boundlessness, high capacity, nonlinearity, multipleinterface and interactivity can assist teaching in various aspects.
Granted, multipleinterface inheritance would allow us to construct a corresponding set of interfaces, but the classes implementing these interfaces couldn't follow the structure directly.