DOM to XML

Question

I am trying to create an XML file using DOM and a HashMap to enter data.
1- How can I link my HashMap to teh DOM code
2- Why FileWriter is printing only one line in the file
3- Am I missing something?
Thank you
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.dom.DOMSource;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringWriter;
import java.util.HashMap;
import org.w3c.dom.*;
public class MyHashmap
     public static void main(String[]args)
          try
               DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
               DocumentBuilder builder = factory.newDocumentBuilder();
               Document doc = builder.newDocument();
                    Element e= doc.createElement("names");
                    Text ee = doc.createTextNode("address");
               doc.appendChild(e);
               e.appendChild(e);
               TransformerFactory tf = TransformerFactory.newInstance();
               Transformer transformer = tf.newTransformer();
               DOMSource source= new DOMSource(doc);
               StringWriter strwriter = new StringWriter();
               StreamResult strresult = new StreamResult(strwriter);
               transformer.transform(source,strresult);
               String result = strwriter.toString();
               FileWriter fw = new FileWriter("result.txt");
               fw.write(result);
               fw.close();
          catch (ParserConfigurationException e1)
               e1.printStackTrace();
          catch (TransformerConfigurationException e)
               e.printStackTrace();
          catch (TransformerException e)
               e.printStackTrace();
          } catch (IOException e) {
               e.printStackTrace();
     public void hashMap(String names, String address)
          HashMap hmap = new HashMap();
          MyHashmap mymap = new MyHashmap();
          hmap.put("names", "address");
          System.out.println(hmap.entrySet());
}

Answer 1

to write nicely formatted XML use this:
            FileOutputStream fos = new FileOutputStream(file);
            TransformerFactory tf = TransformerFactory.newInstance();
            try {
                Transformer t = tf.newTransformer();
                t.setOutputProperty("encoding", "iso-8859-1");
                t.setOutputProperty("indent", "yes");
                t.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
                DOMSource domsource = new DOMSource(document);
                StreamResult sr = new StreamResult(fos);
                t.transform(domsource, sr);
            } catch (TransformerConfigurationException tce) {
                tce.printStackTrace(System.err);
            } catch (TransformerException te) {
                te.printStackTrace(System.err);