title: Converting XML doc to String
body: <p>I am using the follwing code to change a xml document:<br></p>
  
  <pre><code>DocumentBuilderFactory fty1 = DocumentBuilderFactory.newInstance();
     fty1.setNamespaceAware(true);
     DocumentBuilder builder1 = fty1.newDocumentBuilder();
     ByteArrayInputStream bais1 = new ByteArrayInputStream(tr1.getBytes());//tr1=xml string
     Document xmldoc1=builder1.parse(bais1);
     xmldoc1.getElementsByTagName("userID").item(0).setTextContent("123123132");
  </code></pre>
  
  <p><Br>
  The xmldoc1 contains the changed form. Now how convert it to a string so that the new doument can be passed to others.</p>