MainClass.java Source code

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Here is the source code for MainClass.java

Source

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;

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

public class MainClass {
    public static void main(String[] args) throws ParserConfigurationException, XPathExpressionException,
            org.xml.sax.SAXException, java.io.IOException {
        String documentName = args[0];
        String expression = args[1];

        DocumentBuilder parser = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        Document doc = parser.parse(new java.io.File(documentName));

        XPath xpath = XPathFactory.newInstance().newXPath();

        System.out.println(xpath.evaluate(expression, doc));

        NodeList nodes = (NodeList) xpath.evaluate(expression, doc, XPathConstants.NODESET);
        for (int i = 0, n = nodes.getLength(); i < n; i++) {
            Node node = nodes.item(i);
            System.out.println(node);
        }
    }
}