If you want to use namespaces in XPath expressions, you have to provide the link of the used prefix to the URI of the namespace. This article describes three variants of providing the prefix to namespace mapping. It contains example code to make it easy to code your own NamespaceContext.

Every Web developer has to tangle with tables. A new open source library, DisplayTag, can make life with tables much more organized. Find out how to combine the DisplayTag library with JavaScript to make a slick app that displays line item details.

This section describes steps to follow if you want to use the java.net.HttpURLConnection class to send out a SOAP XML message.