sessions in jsp

[Heather]

I have a jsp page that the users have to log in, but I want when they login appears their names, also I want to do a logout, and I don't know
how can I do that?
something about sessions?
do you have some documentation, or examples to do this?

[Peter]

Try with the session object (from HttpSession class)
JSP Tutorial

[Ed]

this is a quick tutorial
WDVL: The Session Object
this is a good one, too:
JSP and JSTL Tutorials - Herong's Tutorial Notes - JSP Sessions and Debugging