Urgent need of help with a chat application!

Question

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

Answer 1

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) {}
////////////////////////////////////////////////////////////////////