void connectionFailed() {
login.setEnabled(true);
logout.setEnabled(false);
// whoIsIn.setEnabled(false);
chatStatus.setText("Please login first");
chatField.setText("");
// reset port number and host name as a construction time
tfPort.setText("" + defaultPort);
tfServer.setText(defaultHost);
// let the user change them
tfServer.setEditable(false);
tfPort.setEditable(false);
// don't react to a <CR> after the username
chatField.removeActionListener(this);
connected = false;
}
public void validAuthenticate() {
chatStatus.setText("Enter your message below");
connected = true;
// disable login button
login.setEnabled(false);
// enable the 2 buttons
logout.setEnabled(true);
// whoIsIn.setEnabled(true);
// disable the Server and Port JTextField
tfServer.setEditable(false);
tfPort.setEditable(false);
// Action listener for when the user enter a message
chatField.addActionListener(this);
switchCards("Menu");
}