Write to My Documents

Question

I'm trying to write to My Documents, but I can't figure out how to make it generic. Each pc has at least 2 users on it, I want to write to the My Documents folder for the current user. It works for every other directory except for My Documents
Any suggestions?
Thank you in advance
try {
                    String[] contactArray = parseDatFile(fc.getSelectedFile());
                    Document document = createXMLDocument(contactArray);
                    saveToXMLFile(
                    document,
                    new File(
                    "C:/Documents and Settings/john.doe/My Documents/OLCS/",// not sure where the default location is yet! Change code below when defualt is known.
                    "contacts-list_migration.ctt"));
                } catch (Exception exc) {
                    File f = new File("C:/Documents and Settings/john.doe/My Documents/OLCS/");// not sure where the default location is yet!
                    boolean yes = true;
                    yes = f.mkdir();

Answer 1

You could use this utilty class:
import java.io.*;
public class Win32Util
    private static final String PERSONAL_FOLDER_CMD = "reg query \"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\" /v Personal";
    private static final String REGSTR_TOKEN = "REG_SZ";
    private static String currentUserPersonalFolderPath;
    public static String getCurrentUserPersonalFolderPath()
        if (currentUserPersonalFolderPath != null)
            return currentUserPersonalFolderPath;
        try
            Process process = Runtime.getRuntime().exec(PERSONAL_FOLDER_CMD);
            StreamPumper pumper = new StreamPumper(process.getInputStream());
            pumper.start();
            process.waitFor();
            pumper.join();
            String result = pumper.getResult();
            int p = result.indexOf(REGSTR_TOKEN);
            if (p == -1)
                return null;
            currentUserPersonalFolderPath = result.substring(p + REGSTR_TOKEN.length()).trim();
            return currentUserPersonalFolderPath;
        catch (Exception e)
            return null;
    static class StreamPumper extends Thread
        private InputStream is;
        private StringWriter sw;
        StreamPumper(InputStream is)
            this.is = is;
            sw = new StringWriter();
        public void run()
            try
                int c;
                while ((c = is.read()) != -1)
                    sw.write(c);
            catch (IOException e)
        String getResult()
            return sw.toString();
}Just do Win32Util.getCurrentUserPersonalFolderPath()