import java.io.File;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import javax.xml.parsers.*; 
import javax.xml.transform.*; 
import javax.xml.transform.dom.DOMSource; 
import javax.xml.transform.stream.StreamResult;
import javax.xml.parsers.DocumentBuilderFactory;
public class setattributeExample
{
public static void main(String[] argv) throws Exception {
  try{
     DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
     factory.setValidating(false);
     factory.setExpandEntityReferences(false);
     Document doc = factory.newDocumentBuilder().parse(new File("order.xml"));
	 Element node = doc.getDocumentElement();
     Element snode=doc.createElement("SALE");
	 Comment comment = doc.createComment("invalid -- comment");
     node.appendChild(snode); // add a child node
	 snode.setAttribute("Books","123"); //attribute to the child node
	 snode.appendChild(comment); // comment in the child node body
	TransformerFactory tranFactory = TransformerFactory.newInstance(); 
    Transformer aTransformer = tranFactory.newTransformer(); 
    Source src = new DOMSource(doc); 
    Result dest = new StreamResult(System.out); 
    aTransformer.transform(src, dest); 
   }catch(Exception e){}
 }
}