Part III: XML and the Document Object Model (DOM)

In the SAX section of the tutorial, you wrote an XML file that contains slides for a presentation. You then used the Simple API for XML (SAX) API to echo the XML to your display. In this section of the tutorial, you'll use the Document Object Model (DOM) to build a small SlideShow application. You'll start by constructing a DOM and inspecting it, then see how to write a DOM as an XML structure, display it in a GUI, and manipulate the tree structure.

http://java.sun.com/xml/jaxp/dist/1.1/docs/tutorial/dom/index.html