This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
this interface contains no methods ,so In Asynchronous Message Services,Why is this used.Is there any reason behind using this in like this: public void onHelloWorldAsyncResponse(AsyncPostCallContext apc, String quote) On edocs site it is written that there is no usage of this interface,so why this is still in use?? Kindly let me know.