public LField (boolean editable, String  label, String  tip)
public LField (String label, String tip)
    public LField (boolean editable,                   String  label,                   String  tip)    {        this.label = new JLabel(label, SwingConstants.RIGHT);        if (tip != null) {            this.label.setToolTipText(tip);        }        field = new SField(editable, tip);    }