how to update xml file from another xml file dynamically?

Here is code what you want it’s

    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
    Document doc = docBuilder.parse("/home/riddhish/developerworkspace/SplitString/src/com/updatexmlwithjava/two.xml");           
    DocumentTraversal traversal = (DocumentTraversal) doc;
    Node a = doc.getDocumentElement();
    NodeIterator iterator = traversal.createNodeIterator(a, NodeFilter.SHOW_ELEMENT, null, true);

/**
* Logic for checking
**/

boolean flag=false;
for (Node n = iterator.nextNode(); n != null; n = iterator.nextNode()) {
       Element e = (Element) n;                
            if ("int".equals(e.getTagName())) {
                if(e.getAttribute("name").equals("linearLayout1")){
                        if(e.getAttribute("value").equals("8"))
                            flag=true;                      
                    }                    
            } 
}

/**
* Logic for reading one.xml and setting android:visibility=”gone”
**/

docFactory = DocumentBuilderFactory.newInstance();
docBuilder = docFactory.newDocumentBuilder();
doc = docBuilder.parse("/home/riddhish/developerworkspace/SplitString/src/com/updatexmlwithjava/one.xml");           
traversal = (DocumentTraversal) doc;
a = doc.getDocumentElement();
iterator = traversal.createNodeIterator(a, NodeFilter.SHOW_ELEMENT, null, true);            
for (Node n = iterator.nextNode(); n != null; n = iterator.nextNode()) {
      Element e = (Element) n;                
          if ("LinearLayout".equals(e.getTagName())) {
                if(e.getAttribute("android:id").equals("@+id/linearLayout1")){
                        if(flag==true){
                            System.out.println(""+e.getAttribute("android:visibility"));
                            e.setAttribute("android:visibility", "gone");
                        }                           
                }                    
          } 
}

/**
* Logic for rewriting one.xml
**/

TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new File("/home/riddhish/developerworkspace/SplitString/src/com/updatexmlwithjava/one.xml"));
iterator = traversal.createNodeIterator(a, NodeFilter.SHOW_ELEMENT, null, true);          
doc = docBuilder.newDocument();
Element rootElement = doc.createElement("ScrollView");
doc.appendChild(rootElement);
for (Node n = iterator.nextNode(); n != null; n = iterator.nextNode()) {               
        rootElement.appendChild(doc.importNode(n, true));
}
transformer.transform(source, result);