Write XML to file

Hello!

I try to write my XML to a file but I guess there is a better way then this below:

    public static void writeXMLFile(Node node)
    {
        String fileString =
        "<?xml version=\"1.0\" encoding=\"ISO-8859-1}\"?>\n"+
        "<!DOCTYPE note [\n"+
        "<!ELEMENT students (student)>\n"+
        "<!ELEMENT student (firstname, lastname, number, address, zipcode, city, email, phone, mobile, other, parents)>\n"+
        "<!ELEMENT firstname (#PCDATA)>\n"+
        "<!ELEMENT lastname (#PCDATA)>\n"+
        "<!ELEMENT adress (#PCDATA)>\n"+
        "<!ELEMENT zipcode (#PCDATA)>\n"+
        "<!ELEMENT city (#PCDATA)>\n"+
        "<!ELEMENT email (#PCDATA)>\n"+
        "<!ELEMENT phone (#PCDATA)>\n"+
        "<!ELEMENT mobile (#PCDATA)>\n"+
        "<!ELEMENT phone (#PCDATA)>\n"+
        "<!ELEMENT other (#PCDATA)>\n"+
        "<!ELEMENT parents (parent*)>\n"+
        "<!ELEMENT parent (firstname, lastname, address, zipcode, city, email, phone, mobile, other)>\n"+
        "]>\n" + node.toString();

        try
        {
            FileWriter fileWriter = new FileWriter(fileName);
            int length = fileString.length();
            fileWriter.write(fileString, 0, length);
            fileWriter.flush();
            fileWriter.close();
        }
        catch (Exception ioe)
        {
            ioe.printStackTrace();
        }
    }

... Because I get this error message when I read it later (Se below). All the empty nodes that looks like this in the first place <node></node> now looks like this <node />.

Does any one know a better idea for this?

Best regrads
Fredrik

org.xml.sax.SAXParseException: Teckenkonverteringsfel: "UTF-8 encoding of charac
ter 0x001aeda9 can't be converted to Unicode." (radnumret kan vara f÷r lÕgt).
        at org.apache.crimson.parser.InputEntity.fatal(InputEntity.java:1100)
        at org.apache.crimson.parser.InputEntity.fillbuf(InputEntity.java:1072)
        at org.apache.crimson.parser.InputEntity.isXmlDeclOrTextDeclPrefix(Input
Entity.java:914)
        at org.apache.crimson.parser.Parser2.maybeXmlDecl(Parser2.java:1009)
        at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:486)
        at org.apache.crimson.parser.Parser2.parse(Parser2.java:305)
        at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:442)

        at org.apache.crimson.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl
.java:185)
        at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:161)
        at xmlformmanager.XmlFileReader.readXMLFile(XmlFileReader.java:67)......