9781111969752_TB_ch12 - Chapter 12 Event-Driven GUI...

Chapter 12: Event-Driven GUI Programming, Multithreading, and Animation
TRUE/FALSE
1. Computer users can expect to see a standard interface in the GUI programs they use.
ANS: T PTS: 1 REF: 492
2. GUI programs are frequently called action-controlled because actions occur in response to user-
initiated events such as clicking a mouse button.
ANS: F PTS: 1 REF: 493
3. In object-oriented languages, the procedural modules that depend on user-initiated events are often
called applets.
ANS: F PTS: 1 REF: 494
4. When you program in a language that uses GUI components, you need to create them from scratch.
ANS: F PTS: 1 REF: 496
5. An important advantage of using GUI data-entry objects is that you often can control what users enter
by limiting their options.
ANS: T PTS: 1 REF: 498
6. A GUI picture album represents “snapshot” views of the screens the user will encounter during the run
of a program.
ANS: F PTS: 1 REF: 502
7. In an event-driven program, you design the screens, define the objects, and define how the screens will
connect.
ANS: T PTS: 1 REF: 504
8. With a single CPU, multiple threads execute simultaneously.
ANS: F PTS: 1 REF: 510
9. Multithreaded programs often run faster and they are more user-friendly.
ANS: T PTS: 1 REF: 511
10. Many object-oriented languages offer built-in classes that contain methods you can use to draw
geometric figures.
ANS: T PTS: 1 REF: 512
MULTIPLE CHOICE

1. From the 1950s, when businesses began to use computers to help them perform many jobs, through the
1980s, almost all interactive dialogues between people and computers took place at the ____.
a. command prompt c. menu
b. graphical window d. system interface
ANS: A PTS: 1 REF: 492
2. The ____ is the location on your computer screen at which you type entries to communicate with the
computer’s operating system.
3. Operating system software allows you to use a mouse or other pointing device to select pictures, or
____, on the screen.
4. Performing an operation on an icon causes a(n) ____.
5. Within an event-driven program, a component from which an event is generated is the ____.
a. target of the event c. interface of the event
b. source of the event d. message handler
ANS: B PTS: 1 REF: 494
6. In object-oriented languages, the procedural modules that depend on user-initiated events are often
called ____.