How to scape chars for XML?

Question

Hi!,
I am generating a XML file.
Would you please help about escaping the text nodes ?
The following code produces an invalid XML file for having the "?" on the text node.
Thansk in advance!
import javax.xml.parsers.*;
import org.w3c.dom.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
public void writeXML(OutputStream os)
Document docXML;
Element root;
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
docFactory.setValidating(true);
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
docXML = docBuilder.newDocument();
root = docXML.createElement("ROOT");
root.appendChild( docXML.createText("Text?"));
docXML.appendChild(root);
docXML.normalize();
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.transform(new DOMSource(docXML), new StreamResult(new OutputStreamWriter(os)));

Answer 1

Thanks.
I am sorry!
The java code was escaping correctly characters but the enconding at the top of the generated XML file was wrong, it generates
<?xml version="1.0" encoding="UTF-8" ?>
and I require for having european characters
<?xml version="1.0" encoding="ISO-8859-1" ?>
How should I change the econding for the generated XML file?