Voice enabling chat application

hi!! all
i am trying to voice enable my chat application (web-based)....can anybody suggest me right direction..i am going in for java speech API's ...if any body has any idea reagrding this pls help..
thanks in advance

Hi,
I am sorry, I am not replying for ur question. In addition to that, i need a help. I need to build web based chat application. Can you tell me some basic info like API's used.
Thanks,
Sankar

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3GS Voice Chat Application

Hey I'm looking for a specific voice chat application. I would like an app that would allow multiple users to join a chat room and talk via voice with each other on the iphone. I would like this app to also allow users on a PC to join into this voice chat with iphone users. I would also like to make the chat room private so only certain users can join the chat room. Is there an existing application that accomplishes this? I have searched around the internet and haven't found anything yet. Thanks.

Stebalien wrote:Cool! However, the key exchange system looks a little unwieldy; personally, I would give everyone a permanent "identity" key (preferably allow the user to a GPG key) and then use the socialist millionaire's protocol (SMP) to exchange these keys. Once the keys have been exchanged, they can be used to negotiate shared session keys. This way, once you talk to someone once, you don't need to keep manually sharing a key with them. The OTR library (libotr) does this very well but I don't know how usable it would be for this project (it's intended for layering encryption over existing IM protocols).
Really thanx for your interest, i refer to the main developer . Be free to come in #seren on irc.freenode.net , to talk directly with him and the community!

Urgent need of help with a chat application!

Hi,
I'm writing a Chat Application and I want to add Emoticon, I did so by adding buttons but I don't know how to send the gif to my JTextField and to my JTextArea.
Here is part of my code can someone can help me PLEASE!!!
JPanel chatPane = new JPanel(new BorderLayout());
JPanel emoticon = new JPanel(new GridLayout(2, 5));
b1 = new JButton (sourrire);
b1.setToolTipText("Un Sourire");
// b1.addActionListener();
emoticon.add(b1);
b2 = new JButton (gsourrire);
b2.setToolTipText("Un Grand Sourire");
// b2.addActionListener();
emoticon.add(b2);
b3 = new JButton (triste);
b3.setToolTipText("Triste");
// b3.addActionListener();
emoticon.add(b3);
b4 = new JButton (grimace);
b4.setToolTipText("Grimace");
// b4.addActionListener();
emoticon.add(b4);
b5 = new JButton (pleure);
b5.setToolTipText("Pleure");
// b5.addActionListener();
emoticon.add(b5);
b6 = new JButton (bec);
b6.setToolTipText("Un bec");
// b6.addActionListener();
emoticon.add(b6);
b7 = new JButton (coeur);
b7.setToolTipText("Un coeur pour toi");
// b7.addActionListener();
emoticon.add(b7);
b8 = new JButton (fache);
b8.setToolTipText("Fache");
// b8.addActionListener();
emoticon.add(b8);
b9 = new JButton (lunettes);
b9.setToolTipText("Je suis Cool");
// b9.addActionListener();
emoticon.add(b9);
b10 = new JButton (clinoeil);
b10.setToolTipText("Clin d'Oeil");
//b10.addActionListener(new ActionAdapter2());
emoticon.add(b10);
Thanks a lot!
Isabelle

Hi anoopjain13
what I did is that each button is an IconImage and I was trying to send the Icon to the textfield.
here is the complete code of my chat, you'll understand better what I tried to do.
//Naziha Berrassil et Isabelle Gosselin
//Travail Pratique #1
//remis � Said Senhaji
//Developpement d'une application CHAT
//package chatv2.a
import java.lang.*;
import java.util.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.*;
public class TCPChat2a implements Runnable {
// Constantes de l'etat de la connection
public final static int NULL = 0;
public final static int DISCONNECTED = 1;
public final static int DISCONNECTING = 2;
public final static int BEGIN_CONNECT = 3;
public final static int CONNECTED = 4;
// Declaration d'un tableau de chaines
public final static String statusMessages[] = {
" Erreur! Aucune connexion possible!", " Deconnexion",
" Deconnexion en cours...", " Connexion en cours...", " Connexion"
//Instentiation de la classe
public final static TCPChat2a tcpObj = new TCPChat2a();
// Indique la fin d'une session
public final static String END_CHAT_SESSION =
new Character((char)0).toString();
// Informations sur l'etat de la connexion
public static String hostIP = "localhost";
public static String user = "";
public static String s1;
public static int port = 1234;
public static int connectionStatus = DISCONNECTED;
public static boolean isHost = true;
public static String statusString = statusMessages[connectionStatus];
public static StringBuffer toAppend = new StringBuffer("");
public static StringBuffer toSend = new StringBuffer("");
// Declaration des composantes GUI et initialisation
public final static ImageIcon sourrire = new ImageIcon ("icons/sourrire.gif");
public static JButton b1;
public final static ImageIcon gsourrire = new ImageIcon ("icons/grand_sourrire.gif");
public static JButton b2;
public final static ImageIcon triste = new ImageIcon ("icons/triste.gif");
public static JButton b3;
public final static ImageIcon pleure = new ImageIcon ("icons/pleure.gif");
public static JButton b4;
public final static ImageIcon coeur = new ImageIcon ("icons/coeur.gif");
public static JButton b5;
public final static ImageIcon grimace = new ImageIcon ("icons/grimace.gif");
public static JButton b6;
public final static ImageIcon lunettes = new ImageIcon ("icons/lunettes.gif");
public static JButton b7;
public final static ImageIcon fache = new ImageIcon ("icons/fache.gif");
public static JButton b8;
public final static ImageIcon bec = new ImageIcon ("icons/bec.gif");
public static JButton b9;
public final static ImageIcon clinoeil = new ImageIcon ("icons/clinoeil.gif");
public static JButton b10;
public static JFrame mainFrame = null;
public static JTextArea chatText = null;
public static JTextField chatLine = null;
public static JPanel statusBar = null;
public static JLabel statusField = null;
public static JTextField statusColor = null;
public static JTextField ipField = null;
public static JTextField username = null;
public static JTextField portField = null;
public static JRadioButton hostOption = null;
public static JRadioButton guestOption = null;
public static JButton connectButton = null;
public static JButton disconnectButton = null;
// Declaration des composantes TCP
public static ServerSocket hostServer = null;
public static Socket socket = null;
public static BufferedReader in = null;
public static PrintWriter out = null;
//Methode qui retourne le premier pannel(optionsPane),ce dernier
//se compose de 5 panneaux
private static JPanel initOptionsPane() {
//pannel pane qui sera ajout� au pannel optionsPane
JPanel pane = null;
//initiation de la classe ActionAdapteur qui implemente ActionListner
ActionAdapter buttonListener = null;
// Creation du pannel optionsPane
JPanel optionsPane = new JPanel(new GridLayout(5, 1));
// 1er pannel pane pour label et textfield de l'adresse IP
pane = new JPanel(new FlowLayout(FlowLayout.RIGHT));
pane.add(new JLabel("Serveur IP:"));
ipField = new JTextField(10);
ipField.setBackground(new Color(0.98f, 0.97f, 0.85f));
ipField.setText(hostIP);
ipField.setEnabled(false);
//evenement generer par Component avec la methode addFocusListener
//en cas d'obtention ou perte du focus par un composant
ipField.addFocusListener(new FocusAdapter() {
public void focusLost(FocusEvent e) {
ipField.selectAll();
//Editable seulement en mode deconnexion
if (connectionStatus != DISCONNECTED) {
changeStatusNTS(NULL, true);
else {
hostIP = ipField.getText();
pane.add(ipField);
optionsPane.add(pane);
// 2eme pannel pane pour label et textfield du port
pane = new JPanel(new FlowLayout(FlowLayout.RIGHT));
pane.add(new JLabel("Port:"));
portField = new JTextField(10);
portField.setBackground(new Color(0.98f, 0.97f, 0.85f));
portField.setEditable(true);
portField.setText((new Integer(port)).toString());
portField.addFocusListener(new FocusAdapter() {
public void focusLost(FocusEvent e) {
//Textfield du port modifiable si on est en mode deconnexion
if (connectionStatus != DISCONNECTED) {
changeStatusNTS(NULL, true);
else {
int temp;
try {
temp = Integer.parseInt(portField.getText());
port = temp;
catch (NumberFormatException nfe) {
portField.setText((new Integer(port)).toString());
mainFrame.repaint();
pane.add(portField);
optionsPane.add(pane);
// 3eme pannel pour label et textfield du nom d'utilisateur
     pane = new JPanel(new FlowLayout(FlowLayout.RIGHT));
          pane.add(new JLabel("Nom: "));
          username = new JTextField(10);
username.setBackground(new Color(0.98f, 0.97f, 0.85f));
          username.setText(user);
          username.setEnabled(true);
          username.addFocusListener(new FocusAdapter() {
          public void focusLost(FocusEvent e) {
          // username.selectAll();
          // Should be editable only when disconnected
          if (connectionStatus != DISCONNECTED) {
          changeStatusNTS(NULL, true);
          else {
          user = username.getText();
          pane.add(username);
optionsPane.add(pane);
// Host/guest option
buttonListener = new ActionAdapter() {
public void actionPerformed(ActionEvent e) {
if (connectionStatus != DISCONNECTED) {
changeStatusNTS(NULL, true);
else {
isHost = e.getActionCommand().equals("host");
// Cannot supply host IP if host option is chosen
if (isHost) {
ipField.setEnabled(false);
ipField.setText("localhost");
hostIP = "localhost";
else {
ipField.setEnabled(true);
//creation de boutton groupe radio(serveur et invite)
ButtonGroup bg = new ButtonGroup();
hostOption = new JRadioButton("Serveur", true);
hostOption.setMnemonic(KeyEvent.VK_S);
hostOption.setActionCommand("host");
hostOption.addActionListener(buttonListener);
guestOption = new JRadioButton("Invite", false);
guestOption.setMnemonic(KeyEvent.VK_I);
guestOption.setActionCommand("invite");
guestOption.addActionListener(buttonListener);
bg.add(hostOption);
bg.add(guestOption);
// 4eme pannel pane pour les 2 bouttons radio
pane = new JPanel(new GridLayout(1, 2));
pane.add(hostOption);
pane.add(guestOption);
optionsPane.add(pane);
// 5eme pannel buttonPane pour les bouttons de connexion et deconnexion
JPanel buttonPane = new JPanel(new GridLayout(1, 2));
buttonListener = new ActionAdapter() {
public void actionPerformed(ActionEvent e) {
// requete pou debut d'une connexion
if (e.getActionCommand().equals("connect")) {
changeStatusNTS(BEGIN_CONNECT, true);
// Deconnexion
else {
changeStatusNTS(DISCONNECTING, true);
//creation des bouttons dans le pannel et l'ajout au premier pannel
//(optionsPane)
connectButton = new JButton("Connexion");
connectButton.setMnemonic(KeyEvent.VK_C);
connectButton.setActionCommand("connect");
connectButton.addActionListener(buttonListener);
connectButton.setEnabled(true);
disconnectButton = new JButton("Deconnexion");
disconnectButton.setMnemonic(KeyEvent.VK_D);
disconnectButton.setActionCommand("disconnect");
disconnectButton.addActionListener(buttonListener);
disconnectButton.setEnabled(false);
buttonPane.add(connectButton);
buttonPane.add(disconnectButton);
optionsPane.add(buttonPane);
return optionsPane;
// Initialisation de toutes les composantes GUI et affichage du frame
private static void initGUI() {
// Configuration du status bar
// cr�ation d'un autre pannel statusBar qui se compose d'un petit carr�
// color� et un label indiquant le mode de connexion
statusField = new JLabel(); //Label indiquant l'�tat de la connexion
statusField.setText(statusMessages[DISCONNECTED]);
statusColor = new JTextField(1); //carr� color� indiquant l'�tat de la connection grace a des couleurs
statusColor.setBackground(Color.red);
statusColor.setEditable(false);
statusBar = new JPanel(new BorderLayout());
statusBar.add(statusColor, BorderLayout.WEST);
statusBar.add(statusField, BorderLayout.CENTER);
// Configuration du pannel optionsPane en appelant la methode d'initiation
// de ce dernier
JPanel optionsPane = initOptionsPane();
// Creation et configuration du pannel chatPane qui contient un
// textarea au centre avec une barre defilante verticale et un textfield
// au sud pour faire rentrer les messages
JPanel chatPane = new JPanel(new BorderLayout());
     JPanel emoticon = new JPanel(new GridLayout(2, 5));
b1 = new JButton (sourrire);
b1.setToolTipText("Un Sourire");
// b1.addActionListener();
emoticon.add(b1);
b2 = new JButton (gsourrire);
b2.setToolTipText("Un Grand Sourire");
// b2.addActionListener();
emoticon.add(b2);
b3 = new JButton (triste);
b3.setToolTipText("Triste");
// b3.addActionListener();
emoticon.add(b3);
b4 = new JButton (grimace);
b4.setToolTipText("Grimace");
// b4.addActionListener();
emoticon.add(b4);
b5 = new JButton (pleure);
b5.setToolTipText("Pleure");
// b5.addActionListener();
emoticon.add(b5);
b6 = new JButton (bec);
b6.setToolTipText("Un bec");
// b6.addActionListener();
emoticon.add(b6);
b7 = new JButton (coeur);
b7.setToolTipText("Un coeur pour toi");
// b7.addActionListener();
emoticon.add(b7);
b8 = new JButton (fache);
b8.setToolTipText("Fache");
     // b8.addActionListener();
     emoticon.add(b8);
b9 = new JButton (lunettes);
b9.setToolTipText("Je suis Cool");
// b9.addActionListener();
emoticon.add(b9);
b10 = new JButton (clinoeil);
b10.setToolTipText("Clin d'Oeil");
//b10.addActionListener(new ActionAdapter2());
emoticon.add(b10);
emoticon.addActionListener(new ActionAdapter() {
public void actionPerformed(ActionEvent e) {
                         String image = chatLine.setImage().toString();
                         appendToChatBox(image);
                         chatLine.selectAll();
                         sendString(image)
                         chatLine.setText(" ");
emoticon.setVisible(true);
//b1 = setVisible(true);
chatText = new JTextArea(10, 100);
chatText.setBackground(new Color(0.98f, 0.97f, 0.85f));
chatText.setLineWrap(true);
chatText.setEditable(false);
chatText.setForeground(Color.blue);
JScrollPane chatTextPane = new JScrollPane(chatText,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
chatLine = new JTextField(10);
chatLine.setBackground(new Color(0.98f, 0.97f, 0.85f));
chatLine.setForeground(Color.blue);
chatLine.setEnabled(false);
chatLine.addActionListener(new ActionAdapter() {
public void actionPerformed(ActionEvent e) {
String s = chatLine.getText();
if (!s.equals("")) {
appendToChatBox(user=username.getText()+" dit : \n" + s + "\n");
chatLine.selectAll();
// Envoi de la chaine entr�e
sendString(s);
chatLine.setText("");
chatPane.add(chatLine, BorderLayout.SOUTH);
chatPane.add(chatTextPane, BorderLayout.NORTH);
chatPane.setPreferredSize(new Dimension(300, 300));
     chatPane.add(emoticon, BorderLayout.CENTER);
// Ajout des pannels dans le pannel principal (mainPane)
JPanel mainPane = new JPanel(new BorderLayout());
mainPane.add(statusBar, BorderLayout.SOUTH);
mainPane.add(optionsPane, BorderLayout.WEST);
mainPane.add(chatPane, BorderLayout.CENTER);
// Configuration du frame (mainFrame)
mainFrame = new JFrame("Chat");
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// la m�thode setDefaultCloseOperation(int)provient de la classe javax.swing.JDialog
     // Elle specifi l'op�ration qui sera ex�cut�e par d�fault lorsque
     // l'utilisateur initialisera une fermeture de session
mainFrame.setContentPane(mainPane);
mainFrame.setSize(mainFrame.getPreferredSize());
     // la m�thode getPreferredSize() provient de la classe java.awt
     // Retourne la grosseur "pr�f�r�e" du container.
mainFrame.setLocation(200, 200);
// la m�thode setLocation(double, double) provient de la classe java.awt.Point
     // elle permet de specifiez un emplacement d'un point a des coordonn�es de type Float
mainFrame.pack();
// la m�thode pack() provient de la class AWT.Window, elle permet a la fenetre
// d'�tre ajuster a la grosseur et a la mise en page des sous-composantes de celle-ci
mainFrame.setVisible(true);
// Le thread qui permet le changement des composantes GUI pendant le
// changement de l'etat
private static void changeStatusTS(int newConnectStatus, boolean noError) {
// Changer l'etat si valide
if (newConnectStatus != NULL) {
          connectionStatus = newConnectStatus;
// S'il n'y a aucunes erreur, afficher le bon message de l'etat
if (noError) {
statusString = statusMessages[connectionStatus];
// Autrement, afficher le message d'erreur
else {
statusString = statusMessages[NULL];
System.out.println("Echec lors de la connexion");
// Appel a la routine de run()(Runnable interface) sur la gestion des erreurs
// et la mise a jours des composantes GUI grace au thread
SwingUtilities.invokeLater(tcpObj);
// Le changement des composantes GUI sans aucun pendant le
// changement de l'etat
private static void changeStatusNTS(int newConnectStatus, boolean noError) {
// Changer l'etat si valide
if (newConnectStatus != NULL) {
connectionStatus = newConnectStatus;
// S'il n'y a aucunes erreur, afficher le bon message de l'etat
if (noError) {
statusString = statusMessages[connectionStatus];
// Autrement, afficher le message d'erreur
else {
statusString = statusMessages[NULL];
// Appel a la routine de run()(Runnable interface) sur la gestion des erreurs
// en utilisant le thread
tcpObj.run();
// L'ajout au chat box avec l'utilisation du Thread
private static void appendToChatBox(String s) {
synchronized (toAppend) {
toAppend.append(s);
System.out.println(s);
// Ajouter le text au "send-buffer"
private static void sendString(String s) {
synchronized (toSend) {
toSend.append(user=username.getText()+ " dit : \n" + s + "\n");
// Nettoyage pour le debranchement
private static void cleanUp() {
try {
if (hostServer != null) {
hostServer.close();
hostServer = null;
catch (IOException e) { hostServer = null; }
try {
if (socket != null) {
socket.close();
socket = null;
catch (IOException e) { socket = null; }
try {
if (in != null) {
in.close();
in = null;
catch (IOException e) { in = null; }
if (out != null) {
out.close();
out = null;
// Verification de l'etat courrant et ajustement de "enable/disable"
// en fonction de l'etat
public void run() {
switch (connectionStatus) {
case DISCONNECTED:
connectButton.setEnabled(true);
disconnectButton.setEnabled(false);
ipField.setEnabled(true);
portField.setEnabled(true);
username.setEnabled(true);
hostOption.setEnabled(true);
guestOption.setEnabled(true);
chatLine.setText("");
chatLine.setEnabled(false);
statusColor.setBackground(Color.red);
break;
case DISCONNECTING:
connectButton.setEnabled(false);
disconnectButton.setEnabled(false);
ipField.setEnabled(false);
portField.setEnabled(false);
hostOption.setEnabled(false);
guestOption.setEnabled(false);
chatLine.setEnabled(false);
statusColor.setBackground(Color.orange);
break;
case CONNECTED:
connectButton.setEnabled(false);
disconnectButton.setEnabled(true);
ipField.setEnabled(false);
portField.setEnabled(false);
hostOption.setEnabled(false);
username.setEnabled(false);
guestOption.setEnabled(false);
chatLine.setEnabled(true);
statusColor.setBackground(Color.green);
break;
case BEGIN_CONNECT:
connectButton.setEnabled(false);
disconnectButton.setEnabled(false);
ipField.setEnabled(false);
portField.setEnabled(false);
hostOption.setEnabled(false);
username.setEnabled(false);
guestOption.setEnabled(false);
chatLine.setEnabled(true);
chatLine.grabFocus();
statusColor.setBackground(Color.orange);
break;
// S'assurer que l'etat des champs bouton/texte sont consistent
// avec l'etat interne
ipField.setText(hostIP);
portField.setText((new Integer(port)).toString());
hostOption.setSelected(isHost);
guestOption.setSelected(!isHost);
statusField.setText(statusString);
chatText.append(toAppend.toString());
toAppend.setLength(0);
mainFrame.repaint();
// Procedure principale
public static void main(String args[]) {
String s;
initGUI();
while (true) {
try {
Thread.sleep(10);
     // Verification a toute les 10 ms
catch (InterruptedException e) {}
switch (connectionStatus) {
case BEGIN_CONNECT:
try {
// Essai de configuration du serveur si "host"
if(user != ""){
     if (isHost) {
     hostServer = new ServerSocket(port);
     socket = hostServer.accept();
     // Si invit�, essai de branchement au serveur
     else {
     socket = new Socket(hostIP, port);
in = new BufferedReader(new
InputStreamReader(socket.getInputStream()));
out = new PrintWriter(socket.getOutputStream(), true);
changeStatusTS(CONNECTED, true);
System.out.println("Ouverture de la session: \n" + socket);
          else{
          JOptionPane.showMessageDialog(null, "Erreur, vous devez entrer un nom d'utilisateur", "Erreur", JOptionPane.PLAIN_MESSAGE);
                    changeStatusTS(DISCONNECTED, false);
// Si erreur, nettoyage et envoi du message d'erreur
catch (IOException e) {
cleanUp();
changeStatusTS(DISCONNECTED, false);
break;
case CONNECTED:
try {
// Envoi de data
if (toSend.length() != 0) {
out.print(toSend);
out.flush();
toSend.setLength(0);
changeStatusTS(NULL, true);
// Reception de data
if (in.ready()) {
s = in.readLine();
if ((s != null) && (s.length() != 0)) {
// Verification de la fin de la transmission
if (s.equals(END_CHAT_SESSION)) {
changeStatusTS(DISCONNECTING, true);
// Autrement, reception du texte
else {
appendToChatBox( s + "\n");
changeStatusTS(NULL, true);
catch (IOException e) {
cleanUp();
changeStatusTS(DISCONNECTED, false);
break;
case DISCONNECTING:
// Dis aux autres fenetre de chat de se d�brancher aussi
out.print(END_CHAT_SESSION);
out.flush();
               System.out.println("Fermeture de la session");
// Nettoyage (ferme les streams/sockets)
cleanUp();
changeStatusTS(DISCONNECTED, true);
break;
default: break; // ne fait rien
// Certaines interfaces �couteurs sont accompagn�es d'adaptateurs qui
//implementent toutes les methodes de l'interface et evitent de les lister.
class ActionAdapter implements ActionListener {
public void actionPerformed(ActionEvent e) {}
////////////////////////////////////////////////////////////////////

Why can't voice/video chat with Gtalk?!!

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You can order flash based video voice chat at [http://www.flashcoms.com|http://www.flashcoms.com] They do high quality products.
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non trivial I think is the phrase that comes to mind - good luck!
a simple solution might be to record all possible exam results as audio in a db and just index and send back based on the exam result
if you really want to be quite sophisticated there are various hosted VoiceXML services you can use to send VXML to and for the audio to be returned
start googling!
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Please get as technical or process as you wish, I should be able to comprehend both scenarios.
Thanks in-advance,
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Thank you so much for your advice, in the meantime i also prefer to choose ITSMobile.
But I am considering about the ABAP developemnt effort and style.
I know that with SAPConsole, ABAP developers need to do some programming task after basis configured SAPConsole, I'd like to know whether there are any difference of ABAP coding style between the old SAPConsole and the new ITSmobile, I'm afraid that the ABAP programmer refused to use the new technology if they had done on SAPConsole.
The second question is: which kind of RF devices should we purchase? a web-browser embeded RF device is obligatory?
The third question is: How does RF AP connect to the SAP application server? through LAN? that means the AP hardware has a RJ45 interface?
Sorry I am totally new to this area. Really thank you for your advice.
Best regards,
Fresh_man

How do i develop a chat application using jms over web based

I want to develop a chat application using jms with mailing,file transfer and audio facilities
can anyone help me to how to go abt that

There is a good article from Sun on a simple example of what you want - it could serve as a basis for you.
http://developer.java.sun.com/developer/technicalArticles/peer/

What are the requirements to build a live video chat application?

I am looking into making a live video chat application. I
have seen several examples on the web so my question is not "how"
to do it. My question is "what do I need" to do it?
It seems that all the examples use Flex Data Services and
then some sort of back-end communication server. The cost of FDS is
well beyond what the client can afford so my question is: is it
necessary? Is there a way to build this sort of application without
FDS? Can I get live video streaming to work using only what is in
the SDK? I know nothing about data streaming, real-time
communication, etc. and have no idea how to implement this outside
what I have seen in the online articles so far.
If there are any other forums that are more appropriate to
this question, please direct me there. It is not a FDS exclusive
issue and I am just starting to look into it. I am starting here
because we would like to use Flash Player for the client-side
application.

I am looking into making a live video chat application. I
have seen several examples on the web so my question is not "how"
to do it. My question is "what do I need" to do it?
It seems that all the examples use Flex Data Services and
then some sort of back-end communication server. The cost of FDS is
well beyond what the client can afford so my question is: is it
necessary? Is there a way to build this sort of application without
FDS? Can I get live video streaming to work using only what is in
the SDK? I know nothing about data streaming, real-time
communication, etc. and have no idea how to implement this outside
what I have seen in the online articles so far.
If there are any other forums that are more appropriate to
this question, please direct me there. It is not a FDS exclusive
issue and I am just starting to look into it. I am starting here
because we would like to use Flash Player for the client-side
application.

Need help regarding develpment of a chat application in java

hi
well, i would like to know what is the best and simple technolgy to develop a simple chat application. I was searching this on internet and found some using servlets and JSP's, applets, RMI etc. I dont know exactly which to use. Infact iam new to java and if someone can help me out with this, i can start reading the specific technology.
Thanks in advance.
ravi.

follow this tutorial and you might get some clues: http://java.sun.com/docs/books/tutorial/networking/sockets/index.html

What is the recommended way to launch a web-start enabled Java application?

Hello,
I have a simple web-start enabled Java application, which I can launch from a brower by entering :
https://xx.xx.x.xxx/MyApp/launch.html
This method would show me a page. I then had to click on a link to run my application.
I noticed that I could also launch my program by entering :
https://xx.xx.x.xxx/MyApp/launch.jnlp
This method would run my application right away.
I wonder if there is a recommended way to launch/run a web-start enabled Java application?
Thank you,
Akino

user8708553 wrote:
..to directly launch my application and bypass the HTML page, why is there a need to
display the HTML page and make the user do a click?There are a number of advantages to using the web page. Including..
<li> An explanation to the end-user of what the application does (a 'sales pitch').
<li> Provision of screen shots of the app. (more 'sales pitch').
<li> A description of what security environment it requires, and why.
<li> Access to using the deployJava.js* to ensure the end-user actually has Java installed & has a suitable minimum version of Java, before they ever get access to the launch button/link.
* http://download.oracle.com/javase/6/docs/technotes/guides/jweb/deployment_advice.html#deployingApplications

Null pointer exception in jsp ,data missing in chat application

Hi all....
I have a chat application in jsp using ajax.I have opened a d/b connection in a jsp which is called each time I sent a message.But sometimes I get null pointer exception in this page when msgs are sent so fast...also I miss some of the msgs I sent....I can't avoid that connection ther..When I commented all those d/b connection statements...everything is working fine..Please suggest me any solution...
Thanks in advance.

Hi,
Am not getting exception now.In the jsp wer I ve written connection,am taking some values using request.getParameter("msg") . I had opened the connection statement before getting these parameter values.Think I ws getting null pointer exception due to this.Now I have opened connection after getting these parameter values...anyway am not getting the exception now...
Thanks.

HT201262 Enable an application to run in Safe Mode?

When booted into Safe Mode on my MacBook not all application will run. Is it possible to enable an application to run while in Safe Boot Mode?

Just to add to what Mark has said, Safe mode is really for troubleshooting a problem when your Mac cannot run properly in normal mode. You may already know this, but I thought i'd mention it in case you thought otherwise.
Here are some details of that environment.
Mac OS X: What is Safe Boot, Safe Mode?

Close a client part of the socket in a chat application

Hy. I have a chat application where the clients connect to the server. For example lets suppose that there are 3 clients connected to the server. I want to make a method that makes the followings : when a client wants to disconnect from the chat application(from the server) he types 'disconnect', and the connection between server and client is interrupted. How can i do this????

Here is the exceptionjava.net.SocketException: Socket closed
     at java.net.SocketInputStream.socketRead0(Native Method)
     at java.net.SocketInputStream.read(SocketInputStream.java:129)
     at java.net.SocketInputStream.read(SocketInputStream.java:182)
     at java.io.DataInputStream.readInt(DataInputStream.java:370)
     at chat.common.network.MessageReader.unserializedMessage(MessageReader.java:38)
     at chat.common.network.MessageReader.run(MessageReader.java:29)
     at java.lang.Thread.run(Thread.java:619), and MessageReader class is like this
public class MessageReader implements Runnable {
    private SynchronizedQueue<IMessage> list;
    private DataInputStream in;
    private static boolean running = true;
    public MessageReader(SynchronizedQueue<IMessage> list, InputStream in) {
        this.list = list;
        this.in = new DataInputStream(in);
    public static void isRunning(boolean isRunning) {
        running = isRunning;
    public void run() {
        try {
            while (running) {
                IMessage m = unserializedMessage(in);
                list.offer(m);
        } catch (IOException e) {
            e.printStackTrace();
    private IMessage unserializedMessage(DataInputStream in) throws IOException {
        int type = in.readInt();
        IMessage m;
        try {
            m = MessageFactory.create(type);
        } catch (Exception e) {
            throw new IOException("userialize exc " + e.getMessage());
        m.unserialize(in);
        return m;
} This

Voice enabling chat application

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