Creating XML Element and add to Document

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
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.Element;

public class Main {
  public static void main(String[] args) throws Exception {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder domBuilder = domFactory.newDocumentBuilder();

    Document newDoc = domBuilder.newDocument();
    Element rootElement = newDoc.createElement("parent");
    newDoc.appendChild(rootElement);

    Element rowElement = newDoc.createElement("row");

      Element curElement = newDoc.createElement("newValue");
      curElement.appendChild(newDoc.createTextNode("newText"));
      rowElement.appendChild(curElement);
      rootElement.appendChild(rowElement);


    TransformerFactory tranFactory = TransformerFactory.newInstance();
    Transformer aTransformer = tranFactory.newTransformer();
    Source src = new DOMSource(newDoc);
    Result dest = new StreamResult(new File("xmlFileName.xml"));
    aTransformer.transform(src, dest);
  }
}

 
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<parent><row><newValue>newText</newValue></row></parent>