How to write a file from the document in android

Question

enter code here


   import java.io.*; 
import javax.xml.parsers.*; 
import org.w3c.dom.*; 
import org.xml.sax.*; 

public class Util { 

    public static Document stringToDom(String xmlSource)  
            throws SAXException, ParserConfigurationException, IOException { 
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 
        DocumentBuilder builder = factory.newDocumentBuilder(); 
        return builder.parse(new InputSource(new StringReader(xmlSource))); 
    } 
} 

how to write a file from document

Thanks