Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.StringReader;
import java.io.StringWriter;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;

public class Main {
    public static void main(String[] args) throws Exception {
        DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        Document doc = db.parse(new InputSource(
                new StringReader("<emp><empname><firstName></firstName><lastName></lastName></empname></emp>")));
        NodeList customerNodes = doc.getElementsByTagName("empname");
        for (int i = 0; i < customerNodes.getLength(); i++) {
            NodeList children = customerNodes.item(i).getChildNodes();
            for (int j = 0; j < children.getLength(); j++) {
                String childNode = children.item(j).getNodeName();
                if (childNode.equalsIgnoreCase("firstName")) {
                    children.item(j).setTextContent(String.valueOf("John"));
                } else if (childNode.equalsIgnoreCase("lastName")) {
                    children.item(j).setTextContent(String.valueOf("Doe"));
                }
            }
        }
        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        StringWriter writer = new StringWriter();
        transformer.transform(new DOMSource(doc), new StreamResult(writer));
        System.out.println(writer.getBuffer().toString());
    }
}