I sm going to start on my assignment for SCJD exam. I downloaded the jar from Sun which included one interface which is supposed to be implemented by another class called as Data.java .
My question is that can we make changes in the interface provided by Sun. The reason I am asking because the DBAccess interface is perfect for RMI except that it doesn't have RemoteException thrown in any of its methods which is a required exceptions if an interface is supposed to be used for RMI.
Please advice whether the interface can be modified to add the RemoteException or not?