单项选择题
A.ComponentListener B.ActionListener C.MouseMotionListener D.MouseListener
A.ActionListener actionPerformed(ActionEvent e) B.AdjustmentListener adjustmentValueChanged(AdjustmentEvent e) C.ChangeListener stateChanged(ChangeEvent e) D.ComponentListener componentShown(ComponentEvent e)
A.可以正常读出Key1为"Value1" B.可以正常读出Key2为"Value2" C.可以正常读出Key3为"Value3" D.可以正常读出Key4为"SuperValue4"