newbieal - 2008-10-03

I need to add text to the <head> tag of HTML documents.  I currently have this code in place:

Parser parser = new Parser ("testingHTML.html");
             NodeList list = parser.extractAllNodesThatMatch(new NodeClassFilter (HeadTag.class));
                       HeadTag head=(HeadTag)list.elementAt(0);
    System.out.println (head.toHtml());

However am stuck at this point and do not know how to proceed. Any help would be greatly appreciated.