<..DOMxml.java ..>

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.*;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.io.File;
public class DOMxml {
   public static void main(String args[])
              throws ParserConfigurationException,
                         SAXException, IOException  {
      DocumentBuilderFactory factory =
            DocumentBuilderFactory.newInstance();
      DocumentBuilder builder =
            factory.newDocumentBuilder();
      Document doc = builder.parse (new File(args[0]).toURL().toString());
      new TreeTraverser (doc);
} }
class TreeTraverser{
   TreeTraverser (Node node){
     <.visit xml context node .>
     int i;
     if( node.hasAttributes() ){
        NamedNodeMap attributes = node.getAttributes()   ;
        for( i=0; i < attributes.getLength(); i++ ){
           new TreeTraverser ( attributes.item(i) );
     } }
     if( node.hasChildNodes() ){
        NodeList children = node.getChildNodes();
        for( i=0; i < children.getLength(); i++ ){
           new TreeTraverser ( children.item(i) );
   } }  }
   <.the visit methods .>
}

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