import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;

public class DOMToStream {
    public static void main(String[] args) 
        throws ParserConfigurationException,
               TransformerConfigurationException,
               TransformerException
    {
        // Create a DocumentBuilderFactory and a DocumentBuilder
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        // Instead of parsing an XML document, however, just create an empty
        // document that you can build up yourself.
        Document document = db.newDocument();

        // Now build a document tree using DOM methods
        Element book = document.createElement("book"); // Create new element
        book.setAttribute("id", "javanut4");           // Give it an attribute
        document.appendChild(book);                    // Add to the document
        for(int i = 1; i <= 3; i++) {                  // Add more elements
            Element chapter = document.createElement("chapter");
            Element title = document.createElement("title");
            title.appendChild(document.createTextNode("Chapter " + i));
            chapter.appendChild(title);
            chapter.appendChild(document.createElement("para"));
            book.appendChild(chapter);
        }

        // Now create a TransformerFactory and use it to create a Transformer
        // object to transform our DOM document into a stream of XML text.
        // No arguments to newTransformer() means no XSLT stylesheet
        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();

        // Create the Source and Result objects for the transformation
        DOMSource source = new DOMSource(document);          // DOM document
        StreamResult result = new StreamResult(System.out);  // to XML text

        // Finally, do the transformation
        transformer.transform(source, result);
    }
}