import java.io.*;
import java.awt.Frame;
import java.awt.FlowLayout;
import java.awt.Color;
import java.awt.Insets;
import java.awt.Dimension;
import java.awt.event.WindowListener;
import java.awt.event.WindowEvent;
import java.util.Enumeration;
import javax.comm.CommPort;
import javax.comm.CommPortIdentifier;
import javax.comm.SerialPort;
import javax.comm.NoSuchPortException;
import javax.comm.PortInUseException;
public class BlackBox extends Frame implements WindowListener
{
static int portNum = 0,
panelNum = 0,
rcvDelay = 0;
static SerialPortDisplay[] portDisp;
static BlackBox win;
static boolean threaded = true,
silentReceive = false,
modemMode = false,
friendly = false;
public BlackBox()
{
super("Serial Port Black Box Tester");
addNotify();
addWindowListener(this);
}
public void windowIconified(WindowEvent event)
{
}
public void windowDeiconified(WindowEvent event)
{
}
public void windowOpened(WindowEvent event)
{
}
public void windowClosed(WindowEvent event)
{
}
public void windowActivated(WindowEvent event)
{
}
public void windowDeactivated(WindowEvent event)
{
}
public void windowClosing(WindowEvent event)
{
cleanup();
dispose();
System.exit(0);
}
public static void main(String[] args)
{
Enumeration ports;
CommPortIdentifier portId;
boolean allPorts = true,
lineMonitor = false;
int idx = 0;
win = new BlackBox();
win.setLayout(new FlowLayout());
win.setBackground(Color.gray);
portDisp = new SerialPortDisplay[4];
while (args.length > idx)
{
if (args[idx].equals("-h"))
{
printUsage();
}
else if (args[idx].equals("-f"))
{
friendly = true;

System.out.println("Friendly mode");
}
else if (args[idx].equals("-n"))
{
threaded = false;

System.out.println("No threads");
}
else if (args[idx].equals("-l"))
{
lineMonitor = true;

System.out.println("Line Monitor mode");
}
else if (args[idx].equals("-m"))
{
modemMode = true;

System.out.println("Modem mode");
}
else if (args[idx].equals("-s"))
{
silentReceive = true;

System.out.println("Silent Reciever");
}
else if (args[idx].equals("-d"))
{
idx++;
rcvDelay = new Integer(args[idx]).intValue();

System.out.println("Receive delay = "
+ rcvDelay + " msecs");
}
else if (args[idx].equals("-p"))
{
idx++;
while (args.length > idx)
{
/*
* Get the specific port
*/

try
{
portId =
CommPortIdentifier.getPortIdentifier(args[idx]);
System.out.println("Opening port "
+ portId.getName());

win.addPort(portId);
}

catch (NoSuchPortException e)
{
System.out.println("Port "
+ args[idx]
+ " not found!");
}
idx++;
}
allPorts = false;
break;
}
else
{
System.out.println("Unknown option "
+ args[idx]);
printUsage();
}
idx++;
}
if (allPorts)
{
/*
* Get an enumeration of all of the comm ports
* on the machine
*/

ports = CommPortIdentifier.getPortIdentifiers();

if (ports == null)
{
System.out.println("No comm ports found!");

return;
}
while (ports.hasMoreElements())
{
/*
* Get the specific port
*/

portId = (CommPortIdentifier)
ports.nextElement();
win.addPort(portId);
}
}
if (portNum > 0)
{
if (lineMonitor)
{
if (portNum >= 2)
{
portDisp[0].setLineMonitor(portDisp[1],
true);
}
else
{
System.out.println("Need 2 ports for line monitor!");
System.exit(0);
}
}
}
else
{
System.out.println("No serial ports found!");
System.exit(0);
}
}
private void addPort(CommPortIdentifier portId)
{
/*
* Is this a serial port?
*/
if (portId.getPortType()
== CommPortIdentifier.PORT_SERIAL)
{
// Is the port in use?
if (portId.isCurrentlyOwned())
{
System.out.println("Detected "
+ portId.getName()
+ " in use by "
+ portId.getCurrentOwner());
}
/*
* Open the port and add it to our GUI
*/
try
{
portDisp[portNum] = new
SerialPortDisplay(portId,
threaded,
friendly,
silentReceive,
modemMode,
rcvDelay,
win);
this.portNum++;
}
catch (PortInUseException e)
{
System.out.println(portId.getName()
+ " in use by "
+ e.currentOwner);
}
}
}
public void addPanel(SerialPortDisplay panel)
{
Dimension dim;
Insets ins;
win.add(panel);
win.validate();
dim = panel.getSize();
ins = win.getInsets();
dim.height = ((this.panelNum + 1) * (dim.height + ins.top
+ ins.bottom)) + 10;
dim.width = dim.width + ins.left + ins.right + 20;
win.setSize(dim);
win.show();
panelNum++;
}
static void printUsage()
{
System.out.println("Usage: BlackBox [-h] | [-f] [-l] [-m] [-n] [-s] [-d receive_delay] [-p ports]");
System.out.println("Where:");
System.out.println("\t-h this usage message");
System.out.println("\t-f friendly - relinquish port if requested");
System.out.println("\t-l run as a line monitor");
System.out.println("\t-m newline is \\n\\r (modem mode)");
System.out.println("\t-n do not use receiver threads");
System.out.println("\t-s don't display received data");
System.out.println("\t-d sleep for receive_delay msecs after each read");
System.out.println("\t-p list of ports to open (separated by spaces)");
System.exit(0);
}
private void cleanup()
{
SerialPort p;
while (portNum > 0)
{
portNum--;
panelNum--;
/*
* Close the port
*/
p = portDisp[portNum].getPort();
if (p != null)
{
System.out.println("Closing port "
+ portNum
+ " ("
+ p.getName()
+ ")");
portDisp[portNum].closeBBPort();
}
}
}
}

Your application is not even using Swing. For a start, make use of Swing classes.

Second, making an applet of a Swing application is not too difficult. You need to change the top-level container to JApplet. I'm not much into Swing to be able to tell what all needs to be changed.

And nobody is going to do it for you. I will tell you though, that the biggest problem I see, off the top of my head after a two second code scan, is your WindowListener implementation. You won't be able to do this stuff in an Applet. Other than that, what is majorly different between Applet and Application (window-wise) is that you don't initialise a Frame, but simply add your stuff to the Panel that is part of the Applet.

And nobody is going to do it for you. I will tell you though, that the biggest problem I see, off the top of my head after a two second code scan, is your WindowListener implementation. You won't be able to do this stuff in an Applet. Other than that, what is majorly different between Applet and Application (window-wise) is that you don't initialise a Frame, but simply add your stuff to the Panel that is part of the Applet.

Hi,
Thanks for your reply.I converted the application into an apple but I find an error that NOClassFound error exception and cannot load drivers.Eventhough I loaded all of them.
Please help me and figure out a solution.

Hi,
Thanks for your reply.I converted the application into an apple but I find an error that NOClassFound error exception and cannot load drivers.Eventhough I loaded all of them.
Please help me and figure out a solution.

You mean applet! NoClassDefFoundError indicates a runtime classpath problem. Since you haven't posted any details, that's as far as I could help.

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