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.
hi friend one thing i know if u use servlet for validation. the servlet should be threadsafe or it should be synchronized. this is for draw the money. but for validation while taking the password it will check with general database that should be unique.if that is matches it will send the response for further process. otherwise gives the error page.samethig i am doing it for chatserver. thank u