creating xml file

Hello Techies,
          I am trying to create xml file using DOM.
       Here is my code.


public static void main(String[] args) {
        // TODO Auto-generated method stub
        try {
            DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = fact.newDocumentBuilder();
            Document doc = db.newDocument();
            Element root = null;
            root = doc.createElement(application);
            doc.appendChild(root);
            Element aid = doc.createElement(application_Id);
            root.appendChild(aid);
            System.out.println("applicationId is added");
            Text t = doc.createTextNode("application");
            t.setNodeValue("test");
            aid.appendChild(t);
            Text t1 = doc.createTextNode("ruleSet_Name");
            t1.setNodeValue("1");
            aid.appendChild(t1);
           
        } catch (ParserConfigurationException pce) {
            // TODO: handle exception
            System.out.println("ParserException" + pce.getMessage());
        }

    }


       I want to store it with name application.xml   .  How can I do this one. Can u guys help me out

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