How to Use XMLEventFactory to create xml document

import java.util.Arrays;
import java.util.List;

import javax.xml.stream.XMLEventFactory;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.Characters;
import javax.xml.stream.events.EndDocument;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartDocument;
import javax.xml.stream.events.StartElement;

public class XMLEventWriterDemo {
public static void main(String[] args) throws Exception {
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();

XMLEventWriter writer = outputFactory.createXMLEventWriter(System.out);

XMLEventFactory xmlEventFactory = XMLEventFactory.newInstance();

StartDocument startDocument = xmlEventFactory.createStartDocument("UTF-8", "1.0");
writer.add(startDocument);

StartElement startElement = xmlEventFactory.createStartElement("", "", "My-list");
writer.add(startElement);

Attribute attribute = xmlEventFactory.createAttribute("version", "1");
List attributeList = Arrays.asList(attribute);
List nsList = Arrays.asList();
StartElement startElement2 = xmlEventFactory.createStartElement("", "", "Item",
attributeList.iterator(), nsList.iterator());
writer.add(startElement2);

StartElement codeSE = xmlEventFactory.createStartElement("", "", "code");
writer.add(codeSE);
Characters codeChars = xmlEventFactory.createCharacters("I001");
writer.add(codeChars);
EndElement codeEE = xmlEventFactory.createEndElement("", "", "code");
writer.add(codeEE);

StartElement nameSE = xmlEventFactory.createStartElement(" ", " ", "name");
writer.add(nameSE);
Characters nameChars = xmlEventFactory.createCharacters("a name");
writer.add(nameChars);
EndElement nameEE = xmlEventFactory.createEndElement("", "", "name");
writer.add(nameEE);

StartElement contactSE = xmlEventFactory.createStartElement("", "", "contact");
writer.add(contactSE);
Characters contactChars = xmlEventFactory.createCharacters("another name");
writer.add(contactChars);
EndElement contactEE = xmlEventFactory.createEndElement("", "", "contact");
writer.add(contactEE);

EndDocument ed = xmlEventFactory.createEndDocument();
writer.add(ed);

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