question: public JToggleGroup ( int type , ListModel data , ListSelectionModel selection ) { setLayout ( new BoxLayout ( this , m_axis ) ) ; m_type = type ; m_data = data ; m_sel = selection ; if ( m_type == RADIO ) { m_group = new ButtonGroup ( ) ; } m_lstnr = new Listener ( ) ; m_sel . addListSelectionListener ( m_lstnr ) ; if ( m_data . getSize ( ) > 0 ) initUI ( ) ; setFocusable ( false ) ; }
target:  Create a new JToggleGroup.