/** Constructs cell editor. */ public CellEditor() { super(new JFormattedTextField()); final JFormattedTextField ftf = (JFormattedTextField) getComponent(); // Set GUI behaviour of text field ftf.setValue(null); ftf.setHorizontalAlignment(JTextField.LEADING); ftf.setFocusLostBehavior(JFormattedTextField.PERSIST); // Set that one click on cell is enough for editing setClickCountToStart(1); // Special handling code for ENTER ftf.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "check"); ftf.getActionMap() .put( "check", new AbstractAction() { public void actionPerformed(ActionEvent e) { if (!ftf.isEditValid()) { if (askEditOrRevert(ftf, null)) { ftf.setValue(ftf.getValue()); ftf.postActionEvent(); } } else try { ftf.commitEdit(); ftf.postActionEvent(); } catch (java.text.ParseException exc) { // nothing to do } } }); }