I am new to EJB. i went thru Head first EJB. Theoritically i feel i am ok. Now i need to implement all type of beans. can some one help me with a small program (like "hello word") implement, deployment and running.
I suggest you to download weblogic server at: http://commerce.bea.com/index.jsp then install it with samples. This will install a directory at: %bea_home%\weblogic81\samples\server\examples\src where you'll have all kinds of samples on ejb like, cmp, bmp, stateless, statefull, relationships, MDB and much more. Open the file %bea_home%\weblogic81\samples\server\examples\src\index.html to have access and instructions on all samples.
You may also use JBoss if you prefer(www.jboss.org), but weblogic is simpler for a beginner.