setLeftOrganizer((Organizer) i);
setLeftDisplayItem((DisplayItem) i);
    public void setChild(String n, Item i) throws Exception {        super.setChild(n, i);        if (n != null) {            if (n.isEqualTo(SplitPane.LEFT_ORGANIZER)) {                setLeftOrganizer((Organizer) i);            } else if (n.isEqualTo(SplitPane.RIGHT_ORGANIZER)) {                setRightOrganizer((Organizer) i);            }        } else {            throw new Exception("Could not set item. The name is null.");        }    }