Network Clients - Java - page 540

/** BufferedReader for reading from socket */
protected

protected BufferedReader is ;
/** PrintWriter for sending lines on socket */
protected

protected PrintWriter pw ;
/** TextField for input */
protected protected TextField tf ;

/** TextArea to display conversations */
protected protected TextArea ta ;

/** The Login button */
protected

protected Button loginButton ;
/** The LogOUT button */
protected protected Button logoutButton ;

/** The TitleBar title */
final final static static String TITLE = "ChatClient: Ian Darwin's Toy Chat Room Client" ;

/** set up the GUI */
public public ChatClient () {

cp = this

this ;
cp . setTitle ( TITLE );
cp . setLayout ( new new BorderLayout ());

port = PORTNUM ;

// The GUI
ta = new new TextArea ( 14 , 80 );

ta . setEditable ( false

false ); // readonly

ta . setFont ( new new Font ( "Monospaced" , Font . PLAIN , 11 ));

cp . add ( BorderLayout . NORTH , ta );

Panel p = new new Panel ();

// The login button
p . add ( loginButton = new

new Button ( "Login" ));
loginButton . setEnabled ( true true );

loginButton . requestFocus ();
loginButton . addActionListener ( new new ActionListener () {

public public void void actionPerformed ( ActionEvent e ) {

login ();
loginButton . setEnabled ( false false );

logoutButton . setEnabled ( true

true );

tf . requestFocus (); // set keyboard focus in right place!

}

});

// The logout button
p . add ( logoutButton = new new Button ( "Logout" ));

logoutButton . setEnabled ( false

false );