Relogio no programa

public class Clientes extends JFrame {
   private BotoesPainel controls;
   private RotuloClientes scrollArea;
   private JTextArea output;
   private String url;
   private Connection connect;
   private JScrollPane textpane;
  
   

   public Clientes()
   {
      super( "Aplicação de Banco de Dados de Agenda de Endereços" );

      Container c = getContentPane();

      // Inicia o layout da tela
   
      scrollArea = new RotuloClientes();
      c.setLayout( new BorderLayout() );
      c.add( new JScrollPane( scrollArea ), BorderLayout.CENTER );


      
      
      
      
      
      // Configura a conexão de banco de dados
      try {
         url = "jdbc:odbc:AddressBook";
         Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" );
         connect = DriverManager.getConnection( url );
      }
      catch ( ClassNotFoundException cnfex ) {
         // processa ClassNotFoundExceptions aqui
         JOptionPane.showMessageDialog( null, "A conexão falhou!\n" + cnfex.toString(), "Aviso",  JOptionPane.WARNING_MESSAGE );
      }
      catch ( SQLException sqlex ) {
         // processa SQLExceptions aqui
          JOptionPane.showMessageDialog(  null, "A conexão falhou!\n", "Aviso",   JOptionPane.WARNING_MESSAGE );
      }
      catch ( Exception ex ) {
         // processa Exceptions remanescentes aqui
         JOptionPane.showMessageDialog( null, ex.toString(), "Aviso", JOptionPane.WARNING_MESSAGE );
      }

      // Completa layout de tela
      controls =  new BotoesPainel(connect, scrollArea, output);
      c.add( controls, BorderLayout.NORTH );

      setSize(850, 500 );
      setResizable(false);
      setVisible(true);
      setLocationRelativeTo(null);
      move(150, 150);
      show();
   }

   public static void main( String args[] )
   {
       
             
       
      Clientes app = new Clientes();

      
      app.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); 
      app.addWindowListener( new WindowAdapter() {
        
         }
     );
   }
}