Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.File;

import javax.xml.parsers.DocumentBuilder;
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.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static void main(String[] args) throws Exception {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document doc = builder.parse(new File("path/to/file.xml"));

        XPathFactory xFactory = XPathFactory.newInstance();
        XPath xPath = xFactory.newXPath();
        XPathExpression expression = xPath.compile("PersonList/Person/Age/text() | PersonList/Person/Name/text()");

        NodeList nodes = (NodeList) expression.evaluate(doc, XPathConstants.NODESET);
        for (int i = 0; i < nodes.getLength(); i++) {
            Node node = nodes.item(i);
            if (node.getParentNode().getNodeName().equals("Name")) {
                node.setNodeValue("new name");
            } else {
                node.setNodeValue("42");
            }
        }
    }
}