SAMS Teach Yourself Programming with Java™ in 24 Hours, FOURTH EDITION

Q&A

Q1:	My XML-RPC handler class has public methods that return void because I don't need a returned value. Why don't these work in XML-RPC?
A1:	They may work in other implementations of the XML-RPC protocol, but Apache XML-RPC doesn't support void as a return type in classes that receive method calls. The LottoCounter class didn't need to return a value in its sendRequest() method either, so it returns the Boolean value true in all circumstances.
Q2:	How does XML-RPC compare to RMI?
A2:	Remote Method Invocation (RMI) is a technique to call one Java class from another class over any network. RMI requires placeholder classes called stubs and skeletons that serve as proxies for classes on a different computer. RMI also requires a registry tool that ...