Newbie question - Portlet development in Portal using JDeveloper

Hello.
I've tried to develop a portlet using Oracle JDeveloper, then using it in an Oracle Portal-provided web page.
I'm so really confused... I don't know where to start!
Let'say the portlet is a very simple Hello World static html or jsp page.
What could I do in order to use it in Portal?
Have I to use jpdk? How?
Or have I to deploy it in the Application Server home OC4J as a web application?
Or have I to deploy it in the OC4J_Portal as a web application?
Or....
If this helps, here is my platform:
I'm using Oracle Application Server 10g Portal as middle-tier. It is correlated to an OID/Infrastructure istance wich provides Single SignOn for the applications, based upon an Oracle 9i database, in which runs Oracle Workflow; my needs are to use a Workflow based Java applications in the Oracle Portal as portlets.
Don't worry: by now, I'm interested in just knowing how to run in the Portal a simple Hello World portlet built with JDeveloper...
Please, help me.
Thank you in advance.
- Umberto

Hi Umberto,
Did you have a chance to take a look at the Portal Developer's Guide?
The Building Java Portlets chapter walks you through the steps you need to take.
Good luck,
Peter

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