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Chat application Sign in Problem (maybe : Exception)
hi everyone, this is my 1st post here
i'm working on chat application, actually i've done with it, it's work fine BUT when i want to making it look great by adding BG and other thing's it's not working at all
1st Project code
Work fine
Java Class
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package Client; /* Imports the javax.swing package classes. */ import java.awt.AlphaComposite; import java.awt.Color; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JPanel; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JTextField; import javax.swing.JList; import javax.swing.JScrollPane; import javax.swing.JDialog; import javax.swing.JPasswordField; import javax.swing.BorderFactory; /*Imports the java.awt package classes.*/ import java.awt.GraphicsEnvironment; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.FlowLayout; import java.awt.Font; import java.awt.Graphics2D; /*Imports the javax.swing.event package classes.*/ import java.awt.Image; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JOptionPane; import javax.swing.UIManager; import javax.swing.JSeparator; /* class ChatLogin - Creates the Chat Login window for the chat application. Method: - actionPerformed() - main() */ public class ChatLogin extends JDialog implements ActionListener { JPanel panel; JPanel pane; /* Declares the objects of the JLabel class. */ JLabel titleLabel; JLabel usernameLabel; JLabel pwdLabel; JLabel localhostLabel; /* Declares the objects of JTextField class */ JTextField usernameText; JPasswordField pwdText; JTextField localhostText; /*Declares the objects of the JButton class.*/ JButton connect; JButton exit; GridBagLayout gbl; GridBagConstraints gbc; int value; /* Defines the default constructor.*/ public ChatLogin() { /*Sets the title of the Font dialog box.*/ setTitle("Binatna MSG"); /*Sets the size of Font dialog box.*/ setSize(280, 170); /*Sets resizable button to FALSE.*/ setResizable(false); /*Initializes the object of the GridBagLayout class*/ gbl = new GridBagLayout(); /* Sets the Layout. */ getContentPane().setLayout(gbl); /*Creates an object of the GridBagConstraints class.*/ gbc = new GridBagConstraints(); /* Initializes the title label object and adds it to the 1, 1, 2, 1 position with WEST alignment. */ gbc.gridx = 1; gbc.gridy = 1; gbc.gridwidth = 2; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.CENTER; pane = new JPanel(); pane.setLayout(new FlowLayout()); titleLabel = new JLabel("Sign in"); titleLabel.setFont(new Font("Verdana",Font.BOLD,20)); pane.add(titleLabel); getContentPane().add(pane, gbc); gbc.gridx = 1; gbc.gridy = 2; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; getContentPane().add(new JSeparator(), gbc); /* Initializes the IP address label object and adds it to the 1, 3, 1, 1 position with EAST alignment */ gbc.gridx = 1; gbc.gridy = 3; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.EAST; localhostLabel = new JLabel("Localhost : "); getContentPane().add(localhostLabel, gbc); /* Initializes the IP address text field object and adds it to the 2, 3, 1, 1 position with WEST alignment */ gbc.gridx = 2; gbc.gridy = 3; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; localhostText = new JTextField("127.0.0.1", 15); localhostText.setFont(new Font("Verdana",Font.PLAIN,12)); getContentPane().add(localhostText, gbc); gbc.gridx = 1; gbc.gridy = 4; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; getContentPane().add(new JSeparator(), gbc); /* Initializes the user name label object and adds it to the 1, 5, 1, 1 position with EAST alignment. */ gbc.gridx = 1; gbc.gridy = 5; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.EAST; usernameLabel = new JLabel("Username : "); getContentPane().add(usernameLabel, gbc); /* Initializes the user name text field object and adds it to the 2, 5, 1, 1 position with WEST alignment. */ gbc.gridx = 2; gbc.gridy = 5; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; usernameText = new JTextField(15); usernameText.setFont(new Font("Verdana",Font.PLAIN,12)); getContentPane().add(usernameText, gbc); gbc.gridx = 1; gbc.gridy = 6; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; getContentPane().add(new JSeparator(), gbc); /* Initializes the password label object and adds it to the 1, 7, 1, 1 position with EAST alignment. */ gbc.gridx = 1; gbc.gridy = 7; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.EAST; pwdLabel = new JLabel("Password : "); getContentPane().add(pwdLabel, gbc); /* Initializes the password text field object and adds it to the 2, 7, 1, 1 position with WEST alignment. */ gbc.gridx = 2; gbc.gridy = 7; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; pwdText = new JPasswordField(15); pwdText.setFont(new Font("Verdana",Font.PLAIN,12)); pwdText.addActionListener(this); getContentPane().add(pwdText, gbc); gbc.gridx = 1; gbc.gridy = 8; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; getContentPane().add(new JSeparator(), gbc); /* Initializes the OK and Cancel button. Adds the button to the 2, 9, 1, 1 position with WEST alignment. */ gbc.gridx = 2; gbc.gridy = 9; gbc.gridwidth = 1; gbc.gridheight = 1; gbc.anchor = GridBagConstraints.WEST; panel = new JPanel(); panel.setLayout(new FlowLayout(FlowLayout.LEFT)); connect = new JButton("Connect"); connect.addActionListener(this); exit = new JButton("Exit"); exit.addActionListener(this); panel.add(connect); panel.add(exit); getContentPane().add(panel, gbc); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent we) { System.exit(0); } }); } /* actionPerformed() - This method is called when the user clicks the any button. Parameters: ae: Represents an object of the ActionEvent class that contains the details of the event. Return Value: NA */ public void actionPerformed(ActionEvent ae) { if(ae.getSource() == connect) { try { /*Creates an object of the ChatClient class.*/ ChatClient tcc = new ChatClient(); /*Calls the con() method to connect to the server.*/ tcc.con(localhostText.getText(), usernameText.getText(), pwdText.getText()); this.setVisible(false); } catch (IOException ex) { Logger.getLogger(ChatLogin.class.getName()).log(Level.SEVERE, null, ex); } } else if(ae.getSource() == exit) { System.exit(0); } else if(ae.getSource() == pwdText) { try { /*Creates an object of the ChatClient class.*/ ChatClient tcc = new ChatClient(); /*Calls the con() method to connect to the server.*/ tcc.con(localhostText.getText(), usernameText.getText(), pwdText.getText()); this.setVisible(false); } catch (IOException ex) { Logger.getLogger(ChatLogin.class.getName()).log(Level.SEVERE, null, ex); } } } /*Main method.*/ public static void main(String args[]) { try { /*Sets the window look and feel to the application.*/ UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); } catch(Exception e){} ChatLogin cl = new ChatLogin(); cl.show(); } }
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2nd Project Not Working
(
- i used NetBeans
- there is a red square alert beside 1st and 2nd Exception
- i can't get access to ChatClient when i click connect button or exit when i click exit button)
JFrame Form
package Client; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import java.io.IOException.*; import java.util.logging.Level; import java.util.logging.Logger; // Variables declaration - do not modify /** * * @author Aymane */ public class ChatLogin extends javax.swing.JFrame implements ActionListener { /*ActionPerfermed Start*/ public void actionPerformed(ActionEvent ae) { if(ae.getSource() == connect_button) { try { /*Creates an object of the ChatClient class.*/ ChatClient tcc = new ChatClient(); /*Calls the con() method to connect to the server.*/ tcc.con(localhost_text_field.getText(), username_text_field.getText(), password_text_field.getText()); this.setVisible(false); } catch (IOException ex) { Logger.getLogger(ChatLogin.class.getName()).log(Level.SEVERE, null, ex); } } else if(ae.getSource() == exit_button) { System.exit(0); } else if(ae.getSource() == password_text_field) { try { /*Creates an object of the ChatClient class.*/ ChatClient tcc = new ChatClient(); /*Calls the con() method to connect to the server.*/ tcc.con(localhost_text_field.getText(), username_text_field.getText(), password_text_field.getText()); this.setVisible(false); } catch (IOException ex) { Logger.getLogger(ChatLogin.class.getName()).log(Level.SEVERE, null, ex); } } } /*ActionPerformd end*/ /** Creates new form ChatLogin */ public ChatLogin() { initComponents(); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code"> private void initComponents() { localhost_text_field = new javax.swing.JTextField(); username_text_field = new javax.swing.JTextField(); connect_button = new javax.swing.JButton(); exit_button = new javax.swing.JButton(); password_text_field = new javax.swing.JPasswordField(); jLabel1 = new javax.swing.JLabel(); jMenuBar1 = new javax.swing.JMenuBar(); file_menu = new javax.swing.JMenu(); connect_menu_item = new javax.swing.JMenuItem(); jSeparator1 = new javax.swing.JPopupMenu.Separator(); exit_menu_item = new javax.swing.JMenuItem(); about_menu = new javax.swing.JMenu(); application_menu_item = new javax.swing.JMenuItem(); jSeparator2 = new javax.swing.JPopupMenu.Separator(); aymane_menu_item = new javax.swing.JMenuItem(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setMinimumSize(new java.awt.Dimension(350, 510)); setResizable(false); getContentPane().setLayout(null); localhost_text_field.setFont(new java.awt.Font("Tahoma", 1, 14)); localhost_text_field.setForeground(new java.awt.Color(196, 0, 0)); localhost_text_field.setText("127.0.0.1"); localhost_text_field.setAlignmentX(0.0F); localhost_text_field.setAlignmentY(0.0F); localhost_text_field.setBorder(null); localhost_text_field.setOpaque(false); getContentPane().add(localhost_text_field); localhost_text_field.setBounds(87, 196, 176, 30); username_text_field.setFont(new java.awt.Font("Tahoma", 1, 14)); username_text_field.setForeground(new java.awt.Color(190, 0, 0)); username_text_field.setText("Aymane"); username_text_field.setBorder(null); username_text_field.setOpaque(false); getContentPane().add(username_text_field); username_text_field.setBounds(87, 266, 176, 30); connect_button.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N connect_button.setForeground(new java.awt.Color(255, 255, 255)); connect_button.setText("Connect"); connect_button.setAlignmentY(0.0F); connect_button.setBorderPainted(false); connect_button.setContentAreaFilled(false); getContentPane().add(connect_button); connect_button.setBounds(90, 424, 100, 25); exit_button.setFont(new java.awt.Font("Tahoma", 1, 14)); exit_button.setForeground(new java.awt.Color(255, 255, 255)); exit_button.setText("Exit"); exit_button.setBorderPainted(false); exit_button.setContentAreaFilled(false); getContentPane().add(exit_button); exit_button.setBounds(190, 424, 73, 25); password_text_field.setFont(new java.awt.Font("Tahoma", 0, 14)); password_text_field.setForeground(new java.awt.Color(190, 0, 0)); password_text_field.setText("Password"); password_text_field.setAlignmentX(0.0F); password_text_field.setAlignmentY(0.0F); password_text_field.setBorder(null); password_text_field.setOpaque(false); getContentPane().add(password_text_field); password_text_field.setBounds(87, 337, 176, 30); jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/image/bg.png"))); // NOI18N jLabel1.setVerticalAlignment(javax.swing.SwingConstants.TOP); jLabel1.setAlignmentY(0.0F); jLabel1.setHorizontalTextPosition(javax.swing.SwingConstants.LEADING); jLabel1.setVerticalTextPosition(javax.swing.SwingConstants.TOP); getContentPane().add(jLabel1); jLabel1.setBounds(0, 0, 350, 450); jMenuBar1.setBackground(new java.awt.Color(0, 0, 0)); jMenuBar1.setBorder(null); jMenuBar1.setForeground(new java.awt.Color(190, 0, 0)); jMenuBar1.setAlignmentX(0.0F); jMenuBar1.setBorderPainted(false); file_menu.setBackground(new java.awt.Color(0, 0, 0)); file_menu.setForeground(new java.awt.Color(190, 0, 0)); file_menu.setText("File"); file_menu.setAlignmentX(0.0F); file_menu.setAlignmentY(0.0F); file_menu.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR)); file_menu.setOpaque(true); connect_menu_item.setBackground(new java.awt.Color(0, 0, 0)); connect_menu_item.setForeground(new java.awt.Color(190, 0, 0)); connect_menu_item.setText("Connect"); connect_menu_item.setInheritsPopupMenu(true); file_menu.add(connect_menu_item); jSeparator1.setBackground(new java.awt.Color(255, 255, 255)); file_menu.add(jSeparator1); exit_menu_item.setBackground(new java.awt.Color(0, 0, 0)); exit_menu_item.setForeground(new java.awt.Color(190, 0, 0)); exit_menu_item.setText("Exit"); file_menu.add(exit_menu_item); jMenuBar1.add(file_menu); about_menu.setForeground(new java.awt.Color(190, 0, 0)); about_menu.setText("About"); about_menu.setAutoscrolls(true); application_menu_item.setBackground(new java.awt.Color(0, 0, 0)); application_menu_item.setForeground(new java.awt.Color(190, 0, 0)); application_menu_item.setText("Binatna Chat"); application_menu_item.setBorder(null); about_menu.add(application_menu_item); about_menu.add(jSeparator2); aymane_menu_item.setBackground(new java.awt.Color(0, 0, 0)); aymane_menu_item.setForeground(new java.awt.Color(190, 0, 0)); aymane_menu_item.setText("Aymane Tech"); aymane_menu_item.setBorder(null); about_menu.add(aymane_menu_item); jMenuBar1.add(about_menu); setJMenuBar(jMenuBar1); pack(); }// </editor-fold> /**/ /**/ /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new ChatLogin().setVisible(true); } }); // Variables declaration - do not modify private javax.swing.JMenu about_menu; private javax.swing.JMenuItem application_menu_item; private javax.swing.JMenuItem aymane_menu_item; private javax.swing.JButton connect_button; private javax.swing.JMenuItem connect_menu_item; private javax.swing.JButton exit_button; private javax.swing.JMenuItem exit_menu_item; private javax.swing.JMenu file_menu; private javax.swing.JLabel jLabel1; private javax.swing.JMenuBar jMenuBar1; private javax.swing.JPopupMenu.Separator jSeparator1; private javax.swing.JPopupMenu.Separator jSeparator2; private javax.swing.JTextField localhost_text_field; private javax.swing.JPasswordField password_text_field; private javax.swing.JTextField username_text_field; // End of variables declaration }
plz help me!!!!!!!!!!!
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