private   void  setUpPeriod()
    {
          try 
         {
             MaskFormatter formatter =  new  MaskFormatter ("****");
             formatter.setValidCharacters(" 0123456789");
             intPeriod=  new  JFormattedTextField(formatter);
             intPeriod.setValue("3");
             intPeriod.setPreferredSize( new  Dimension( 50 , 20 ));
             intPeriod.setFocusLostBehavior  (JFormattedTextField.COMMIT_OR_REVERT);
             

         }
          catch (ParseException pe)
         {
             pe.printStackTrace();
         }
    }

     public   void  editComplete()
    {
        oldValue =  new  Integer(lastValue);
        Integer newValue =  new  Integer(getValue());
         try 
        {
            fireVetoableChange("value",oldValue,newValue);
            firePropertyChange("value",oldValue,newValue);
        }
         catch (PropertyVetoException e)
        {
            // Нарушен какой-то запрет

            JOptionPane.showMessageDialog( this ,e," ОШИБКА ",JOptionPane.WARNING_MESSAGE);
            setText(""+lastValue);
            requestFocus();
          }
}