The above is a guide to developing Web applications with the Java Web Services Developer Pack (Java WSDP).
Sun's Application Server needs to be used in here to implement the examples.
The tutorials covers various things like
-The Java API for XML Processing (JAXP)
-The Java API for XML-based RPC (JAX-RPC)
-SOAP with Attachments API for Java (SAAJ)
-The Java API for XML Registries (JAXR)
Best part of this is -- all examples are available for download . Hardly any work is needed to get the simple examples working.
Worst part is --various jargons are in place like SAX(Simple API for XML), DCOM(Document Object Model) . These are XML processing models.
This link is a good starting point to parse XML documents using a SAX parser in Java.