/* another dom parsery */
import javax.xml.parsers.*; 
import org.xml.sax.*;
import java.io.*;
import org.w3c.dom.*;
import java.lang.String;

public class DomParser3{
    public static void main(String argv[])
    {
        if (argv.length != 1) {
            System.err.println("Usage: java DomParser filename");
            System.exit(1);
        }
        DocumentBuilderFactory factory =
            DocumentBuilderFactory.newInstance();
	factory.setValidating(true);
        try {
           DocumentBuilder builder = factory.newDocumentBuilder();
           Document document = builder.parse( new File(argv[0]) );
	   // this could also read from a URL or any other stream
           Element root = document.getDocumentElement();
           if (root != null) PrintTree(root);
        } catch (SAXException sxe) {
           // Error generated during parsing
             System.err.println(sxe);
        } catch (ParserConfigurationException pce) {
            // Parser with specified options can't be built
             System.err.println(pce);
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    } // end of main


    private static void PrintTree(Element e) 
    {
	int i;
        Node n,child;
        NodeList children;
        NamedNodeMap attributes;
       
        attributes = e.getAttributes();
        System.out.println("Element " + e.getNodeName() + " has " +
			   attributes.getLength() + " attributes");
        for(i=0;i<attributes.getLength();i++) {
            n = attributes.item(i);
            System.out.println(n.getNodeName() + "=" + n.getNodeValue());
        }
        children = e.getChildNodes();
        System.out.println("Element " + e.getNodeName() + " has " +
			   children.getLength() + " children");
        for (i=0;i<children.getLength();i++) {
	    child = children.item(i);
            if (child.getNodeType()==1) PrintTree((Element)child);
	}
    }
     
}