import javax.xml.parsers.*;
import org.w3c.dom.*;
import java.io.*;
import javax.xml.xpath.*;
import javax.xml.namespace.QName;

public class XPathTester {
    
    public static void main(String[] args) throws Exception {
	//Create a new factory to use to generate a DocumentBuilder
	DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

	//Make the parser aware of the namespaces
	factory.setNamespaceAware(true);

	//Create a new DocumentBuilder
	DocumentBuilder d = factory.newDocumentBuilder();

	//Fetch the most recent Coverville feed
	Document doc = d.parse("http://feeds.feedburner.com/coverville");

	//Create a new XPath object
	XPath xp = XPathFactory.newInstance().newXPath();

	//Evaluate the XPath expression /rss/channel/item/title[starts-with(., \"Coverville\")]
	//and save the resulting NodeList
	NodeList nl = (NodeList) xp.evaluate("/rss/channel/item/title[starts-with(., \"Coverville\")]", doc.getDocumentElement(), XPathConstants.NODESET);
	
	//Print the contents of each title node selected 
	for(int i = 0; i < nl.getLength(); i++) {
	    Node n = nl.item(i);
	    NodeList children = n.getChildNodes();
	    for(int j = 0; j < children.getLength(); j++) {
		System.out.println(children.item(j).getNodeValue());
	    }
	    System.out.println("*******************\n\n");
	}	
	
    }   
}