The _____ key can be pressed to transfer the focus between several controls quickly.

Answer the following questions true (T) or false (F)

1. The event-driven paradigm requires implementing methods that will never be invoked. 2. The close-window button is in the class JButton.

If the code in a method can potentially throw a checked exception, then that method must __________.

a. handle the exception b. have a throws clause listed in the method header c. neither of these d. either of these