super("Undo"); putValue(SHORT_DESCRIPTION, "Undo one action");
super(Resources.getString("action.history.undo.name")); putValue(SHORT_DESCRIPTION, Resources.getString("action.history.undo.tooltip"));
        public UndoAction() {            super("Undo");            putValue(SHORT_DESCRIPTION, "Undo one action");            putValue(ACCELERATOR_KEY,                    KeyStroke.getKeyStroke("control Z"));        }