1. Java XML Tutorial
2. Java & XML Tool Overview
3. Java SAX Parser
4. Java SAX DefaultHandler
5. Java SAX Schema Validation
6. Java SAX Parsing Example
7. Java SAX vs. StAX
8. Java StAX
9. Java StAX: XMLInputFactory
10. Java StAX: XMLOutputFactory
11. Java StAX: XMLEventReader - The Iterator API
12. Java StAX: XMLEventWriter - The Iterator Writer API
13. Java StAX: XMLStreamReader - The Cursor API
14. Java StAX: XMLStreamWriter - The Cursor Writer API
15. Java DOM
16. Java DOM: The Document Object
17. Java DOM Schema Validation

The XMLStreamWriter class in the Java StAX API allows you to write XML events (elements, attributes etc.) either to a Writer, an OutputStream, or a Result (special JAXP object).

Here is a simple example that writes a series of events to disk, using a FileWriter:

XMLOutputFactory factory      = XMLOutputFactory.newInstance();

 try {
     XMLStreamWriter writer = factory.createXMLStreamWriter(
             new FileWriter("data\\output2.xml"));

     writer.writeStartDocument();
     writer.writeStartElement("document");
     writer.writeStartElement("data");
     writer.writeAttribute("name", "value");
     writer.writeEndElement();
     writer.writeEndElement();
     writer.writeEndDocument();

     writer.flush();
     writer.close();

 } catch (XMLStreamException e) {
     e.printStackTrace();
 } catch (IOException e) {
     e.printStackTrace();
 }

The result of executing this code is the following XML file (line breaks inserted for readability):

<?xml version='1.0' encoding='utf-8'?>
<document><data name="value"></data></document>