Parsing XML

I'm trying to parse an XML file into an XML file. So basically I'm appending some static elements, attributes, and Text Content for the most part, but I have about 16 dynamic TextContent fields that I want to parse from an existing XML document into my new one. The way I want to do it is to use a for statement the nodes to iterate through to pull the information. I'm getting an implementation error on the for statements and I'm not sure how else to do this without a for statement. Any ideas? Thanks. Here's the relevant code so far:

Code Java:

public static void main(String[] args) {
 
        try {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder loader = factory.newDocumentBuilder();
 
      Document input = loader.parse(new FileInputStream("c:\\XML\\input.xml"));
 
        Node Order = input.getDocumentElement();
 
        NodeList DetailsList = input.getElementsByTagName("Details");
 
        for (Node Detail : DetailsList) { 
 
        DocumentBuilder docBuilder = factory.newDocumentBuilder();
 
        Document doc = docBuilder.newDocument();
 
        Element root = doc.createElement("MercuryGate");
        doc.appendChild(root);
 
//...Various create element and append statements follow
 
NodeList FieldsList = input.getElementsByTagName("Field");
 
        for (Node Field : FieldsList){
 
//...My for statements that pull the content and then insert it into the setTextContent fields where necessary in my previous code
 
    TransformerFactory tranFactory = TransformerFactory.newInstance();
    Transformer aTransformer = tranFactory.newTransformer();
 
    Source src = new DOMSource(doc);
    Result dest = new StreamResult("c:\\XML\\xmltest.xml");
    aTransformer.transform(src, dest);  
 
 
            }
    }
 
    catch(Exception e){
      System.out.println(e.getMessage());
    }