there is small difference between java 1.4 and earlier version like assertions...etc. So I think there may not be much difference between 2.3 and 2.4 of servlets. is itnt?.
So will it be fine if I prepate below book for servlets of this scwcd. "Professional Java Servlets 2.3 by Andrew Harbourne-Thomas" I am looking for easy undestandable books for begining.