Deck 7: Events

Question 1

When an event occurs the corresponding event handler is executed.

Answer 1

True

Question 2

What tools can be used to design your own people objects?

A) Alice builders
B) Character builders
C) Gallery builders
D) People builders
E) None of these

Answer 2

B

Question 3

Which of the following events should be used to cause a method to execute when a world is played?

A) Let the mouse move the camera
B) Play World
C) When the program starts
D) When the world starts
E) None of these

Answer 3

D

Question 4

Which of the following events should be used to enable the user to move Alice forward by clicking the up arrow key?

A) Let the mouse move the camera
B) Let the arrow keys move
C) When a key is typed
D) When the world starts
E) None of these

Question 5

When the world starts is the name of an event handler.

Question 6

Which of the following events should be used to cause a method to execute when the letter 'X' is typed?

A) Let the mouse move the camera
B) When a key is typed
C) When the mouse is clicked on something
D) When the world starts
E) None of these

Question 7

Which of the following events should be used to enable the user to move the camera around by dragging the mouse around in the world?

A) Let the mouse move the camera
B) When a key is typed
C) When the mouse is clicked on something
D) When the world starts
E) None of these

Question 8

Another term for the method that executes in response to a particular event is:

A) Event
B) Event handler
C) Property
D) Function
E) None of these

Question 9

The process of responding to an event is commonly called alternating instance response.

Question 10

What method is used to play a sound?

A) Make sound
B) Play song
C) Play sound
D) Play
E) None of these

Question 11

Which of the following parts of a BDE event should be used for code that should execute once when the event stops?

A) Begin
B) During
C) End
D) Stop
E) None of these

Question 12

Which of the following parts of a BDE event should be used for code that should execute once when the event first occurs?

A) Begin
B) During
C) End
D) Start
E) None of these

Question 13

When a world is first created, the only tile that appears in the Events Editor is for the When the world starts event.

Question 14

Which of the following statements is useful for debugging a program?

A) Debug
B) Display
C) Print
D) Write
E) None of these

Question 15

What are the two ways to associate a sound with an object?

A) Get sound and import sound
B) Get sound and record sound
C) Import sound and record sound
D) Make sound and get sound
E) None of these

Question 16

When the world starts is an example of which of the following:

A) An event
B) An event handler
C) A method
D) A function
E) None of these

Question 17

Which of the following parts of a BDE event should be used for code that should continue to execute as long as the event continues to occur?

A) Begin
B) During
C) End
D) While
E) None of these

Question 18

Which of the following events should be used to cause a method to execute when a condition you have specified becomes true?

A) While something is true
B) When something becomes true
C) When a key is typed
D) When a variable changes
E) None of these

Question 19

Which of the following is a BDE event?

A) Let the mouse move the camera
B) Let the arrow keys move
C) When a key is typed
D) While a key is pressed
E) None of these

Question 20

The create new event button is located in the:

A) Details Panel
B) Events Editor
C) Method Editor
D) Object Editor
E) None of these

Question 21

An event such as the While a key is pressed event is also referred to as a(n) ___________________ event because of the three slots that are available for the three different aspects of the event.

Question 22

A(n) ___________________ is an action that takes place while a world is playing.

Question 23

The ___________________ event should be used to make the world stop if the letter 'Q' is pressed.

Question 24

Events enable the creation of worlds that are more ___________________.

Question 25

The ability to generate ___________________ is important for some types of applications, particularly games and simulations.

Question 26

The When a key is typed event could be used if the user wants the world to end if the user types the letter 'Q'.

Question 27

The random number function is a world-level function.

Question 28

In order to create the While a key is pressed event, the ___________________ event must first be created.

Question 29

The method my first method is an example of an event ___________________.

Question 30

A(n) ___________________ is a method that automatically executes in response to an event.

Question 31

Games typically only utilize a single event handler in order to respond to various user interactions.

Question 32

The print statement is useful for displaying diagnostic messages that can assist with debugging a program.

Question 33

The When a key is typed event can only be used to respond to letters and/or numbers being typed.

Question 34

The character builder only enables you to design male characters.

Question 35

When the world starts is an example of a(n) ___________________ that Alice can detect.

Question 36

A program cannot be written to respond to more than one event.

Question 37

The ___________________ function is used to generate a fractional number between 0 and 1.

Question 38

BDE events have three parts: Begin, During, and End.

Question 39

Events enable the creation of worlds that are more interactive.

Question 40

The ability to generate random numbers is important for some types of applications, particularly games and simulations.

Question 41

The ___________________ portion of a BDE event executes once when the event stops.

Question 42

The ___________________ statement is useful for displaying diagnostic messages that can assist with debugging a program.

Question 43

The ___________________ builders enable you to design your own people objects.

Question 44

The ___________________ portion of a BDE event executes as long as the event continues to occur.

Question 45

Games often require numerous ___________________ in order to respond to various user interactions.

Question 46

The ___________________ portion of a BDE event executes once when the event first occurs.