After Loding servlet class and executing default constructor At the first request or when it is instantiated or it is instantiated when the first request is made?
Best time to Load a Servlet class is decided by your server depending on the server confugration.
I am not able to recollect it but there is some tag called <load-on-startup> (may be something diff)
init is called only once when the servletcontext is initialised (basically when you start tomcat). <load-on-startup>1</load-on-startup> says this servlet has highest priority at loading. 2 and higher numbers are loaded after servlets with 1 are loaded. I am not sure whether this is guaranteed or just a guideline.
I�m using Tomcat and if I put <load-on-startup>4</load-on-startup>, init() method is called when the context is initialized, if I don�t put, init() methos is called only whne the first request is made...