Self-Review Exercises
22.1 Fill in the blanks in each of the following statements:
a) The _________ class is used to create a menu object.
b) The _________ method of class JMenu places a separator bar in a menu.
c) JSlider events are handled by the _________ method of interface _________.
d) The GridBagConstraints instance variable _________ is set to CENTER by default.
22.2 State whether each of the following is true or false. If false, explain why.
a) When the programmer creates a JFrame, a minimum of one menu must be created and added to the JFrame.
b) The variable fill belongs to the GridBagLayout class.
c) Drawing on a GUI component is performed with respect to the (0, 0) upper-left corner coordinate of the component.
d) The default layout ...
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