Reading XML Data into memory

Hey There!
I looked through the other posts, and hope i am not repeating a question here...
I am trying to read/write the pcdata from an xml file into/from memory, using a Java servlet. I have been reading about JAXP, JAXB, SAX, the DOM etc, but haven't found any simple examples. TO be honest I am now rather confused after reading about the different approaches to this.
I need a pointer to a simple complete example, or at least a list of what APIs etc I need in my 'toolbox'.
Thank you so much for any help or info,
Rosa

This chapter from Professional JSP might help you get started.
http://www.jspinsider.com/tutorials/jsp/xml/4958_Chap12.pdf
David

Thanks David!
This chapter was very clear in expressing the differences between SAX, DOM, and JDOM.
Rosa
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