Hi Andy,
The startElemnt() tag syntax (which I assume You picked up from the org.xml.sax.ContentHandler interface) is better defined as
public void startElemnt(string namespaceURI, string localName, string fullName, Attributes attributes)
Before going into the definition of the names, consider the following element
<p:name xmlns

="http://www.clearMyDoubts/XML/names" ></p:name>
In teh above case
the elemnt "name" belongs to the namespace "p" defined by "http://www.clearMyDoubts/XML/names"
simpleName(sName) or localName = Just the name of the elemnt which is just the name of teh elemnt, without teh namespace it is associated with !!. In our case it will be --> name
qualifiedName(qName) or fullName = The full name of teh elemnt , including the namespace it is associated with, that is, the name of teh elemnt along with the prefix !!. In our case here it will be --> p:name
Hope this clears your doubt
