Re: java parallel port program bugs

sorry i accidentally deleted my post.here is it agin:
hi.could anyone please tell me what is wrong with my code given below?
the port data outputs are supposed to be made low on running the
code.but i checked the output using a digital voltmeter and it is
staying high.i am using windows XP and jdk1.5.0.and the Rxtx package
do i need to install any drivers to allow port communication?.it is
showing the IOEXCEPTION:'the data was written successfully in the
writebyte'.

package parallelIO;
import gnu.io.*;
import java.io.*;

public class ParallelIO {

    private static OutputStream outputStream;
    private static ParallelPort parallelPort;
    private static CommPortIdentifier port;
    static byte dat=0x00;

    public static final String PARALLEL_PORT = "LPT1";
    public ParallelIO()
         {
                try {
                   // get the parallel port connected to the output
                      port =
CommPortIdentifier.getPortIdentifier(PARALLEL_PORT);
                                  // open the parallel port --
open(App name, timeout)
                          parallelPort = (ParallelPort)
port.open("Automator",
50);
                          outputStream =
parallelPort.getOutputStream();

                              outputStream.write(dat);
                          outputStream.flush();
                          outputStream.close();

                        }
                 catch (NoSuchPortException nspe)
                        {
                      System.out.println("\nPrinter Port LPT1 not
found :
"
                    + "NoSuchPortException.\nException:\n" + nspe +
"\n");
                }
              catch (PortInUseException piue)
                {
                          System.out.println("\nPrinter Port LPT1 is
in use : "
                    + "PortInUseException.\nException:\n" + piue +
"\n");
                }
                      catch (IOException ioe)
                        {
                          System.out.println("\nPrinter Port LPT1
failed to
write : "
                    + "IOException.\nException:\n" + ioe + "\n");
                }
              catch (Exception e)
                {
                          System.out.println("\nFailed to open Printer
Port LPT1
with exception : "
                      + e + "\n");
                }
              finally
                {
                     if (port != null && port.isCurrentlyOwned())
                         {
                             parallelPort.close();
                         }
                     System.out.println("Closed all resources.\n");
                }
    }