Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static void main(String[] args) throws Exception {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        Document doc = factory.newDocumentBuilder()
                .parse("http://stackoverflow.com/feeds/tag?tagnames=java&sort=newest");
        Element root = doc.getDocumentElement();
        XPath xPath = XPathFactory.newInstance().newXPath();
        XPathExpression expression = xPath.compile("//entry");
        NodeList nl = (NodeList) expression.evaluate(root, XPathConstants.NODESET);
        System.out.println("Found " + nl.getLength() + " items...");
        for (int index = 0; index < nl.getLength(); index++) {
            Node node = nl.item(index);
            expression = xPath.compile("title");
            Node child = (Node) expression.evaluate(node, XPathConstants.NODE);
            System.out.println(child.getTextContent());
        }
    }
}