Error while try to read XML using JDOM

Question

hi' i don't know what's wrong with this. i try to read my XML document, but i already got exception when i try to initialize it.
public class readXML
     public readXML()
          try
               SAXBuilder builder = new SAXBuilder();
               Document doc = builder.build("XMLTutorial/data.xml");     
          catch(Exception e)
               e.printStackTrace();
     public static void main(String[] args)
          new readXML();
}This is my XML Document :
<f:table>
   <f:name>African Coffee Table</f:name>
   <f:width>80</f:width>
   <f:length>120</f:length>
</f:table>when i try to run it, i got this exception :
Caused by: org.xml.sax.SAXParseException: The prefix "f" for element "f:table" is not bound.what's wrong?
Thanks a lot.

Answer 1

Namespace prefixes must always be bound to a namespace.
http://www.w3.org/TR/xml-names11/#sec-namespaces
For example:<f:table xmlns:f="some namespace">
  <f:name>African Coffee Table</f:name>
  <f:width>80</f:width>
  <f:length>120</f:length>
</f:table>