Question 1

A panel is displayed as a separate window, but a frame can only be displayed as part of another container.

Accepted Answer

A frame is displayed as a separate window, but a panel can only be displayed as part of another container.

Question 2

Which of the following layout managers organize the components from left to right, starting new rows as necessary?
A) Border Layout
B) Box Layout
C) Card Layout
D) Flow Layout
E) Grid Layout

Accepted Answer

The flow layout organizes components from left to right, starting new rows as necessary. A border layout organizes components into five areas: north, south, east, west, and center. The box layout organizes components into a single row or column. The card layout organizes components into one area such that only one is visible at any time. A grid layout organizes components into a grid of rows and columns.

Question 3

Which of the following components can be toggled on or off using the mouse, indicating that a particular boolean condition is set or unset?
A) check box
B) radio button
C) slider
D) dialog box
E) none of the above

Accepted Answer

A check box can be toggled on or off using the mouse indicating that particular boolean condition is set or unset. A radio button represents a set of mutually exclusive options. A slider represents a range of values and a dialog box is a graphical window that pops up and allows the user to interact with the program.

Question 4

Which of the following classes play a role in altering a visual aspect of a component?
A) ColorChooser
B) ToolTip
C) BorderFactory
D) ColorCreator
E) none of the above

Accepted Answer

The BorderFactory class can be used to create borders, and when used with the setBorder method, the borders of components can be changed. The other options are not classes that are included with the AWT.

Question 5

Which of the following event descriptions best describes the mouse entered event?
A) The mouse button is pressed down
B) The mouse button is pressed down and released without moving the mouse in between
C) The mouse pointer is moved onto a component
D) The mouse button is released
E) The mouse is moved while the mouse button is pressed down

Accepted Answer

The mouse entered event is triggered when the mouse pointer is moved onto a component. Choice a best describes a mouse pressed event. Choice b best describes a mouse clicked event. Choice d best describes a mouse released event. Choice e best describes a mouse dragged event.

Question 6

Which of the following is a fundamental idea of good GUI design?
A) Know the user
B) Prevent user errors
C) Optimize user abilities.
D) Be consistent.
E) all of the above

Accepted Answer

All of the choices are fundamental ideas of good GUI design.

Question 7

A container is goverened by a(n) __________________, which determines exactly how the components added to the panel will be displayed.
A) event
B) content pane
C) JFrame object
D) JPanel object
E) layout manager

Accepted Answer

The layout manager determines exactly how the components added to the panel will be displayed. A content pane's frame is where all visible elements of a Java interface are displayed. The JFrame and JPanel objects are part of the AWT package. An event is an object that represents some occurrence in which we may be interested.

Question 8

Which of the following best describes a timer component?
A) it starts when a GUI component is first initialized, and ends when it is destroyed
B) it generates action events at regular intervals
C) every object has a timer, and it is implicitly activated in the constructor of the object
D) it determines the amount of time it takes to execute a method
E) a timer cannot be considered a GUI component

Accepted Answer

Choice b is the best description of a timer component. None of the other choices are true statements.

Question 9

A(n) _______________________ is a graphical window that pops up on top of any currently active window so that the user can interact with it.
A) component
B) dialog box
C) event
D) listener
E) none of the above

Accepted Answer

A component is an object that defines a screen element used to display information or allow the user to interact with a program in a certain way. An event is an object that represents some occurrence in which we may be interested. A listener is an object that waits for an event to occur and responds in some way when it does.

Question 10

A(n) ____________________ is an object that waits for an event to occur and responds in some way when it does.
A) GUI
B) component
C) listener
D) frame
E) panel

Accepted Answer

A listener is an object that waits for an event to occur and responds in some way when it does. A component is an object that defines a screen element used to display information or allow the user to interact with a program in a certain way. A GUI is a graphical user interface. A frame is a container that is used to display GUI-based Java applications. A panel is also a container, but unlike a frame it cannot be displayed on its own.

Question 11

Which of the following represents a dialog box that allows the user to select a file from a disk or other storage medium?
A) color chooser
B) disk chooser
C) tool tip chooser
D) file chooser
E) none of the above

Accepted Answer

A file chooser is a dialog box that allows the user to select a file. A color chooser allows the user to select a color. There are no dialog boxes in the AWT that represent a tool tip chooser or a disk chooser.

Question 12

A(n) ___________________ is an object that defines a screen element used to display information or allow the user to interact with a program in a certain way.
A) GUI
B) component
C) event
D) listener
E) AWT

Accepted Answer

A component is an object that defines a screen element used to display information or allow the user to interact with a program in a certain way. A GUI is a graphical user interface. An event is an object that represents some occurrence in which we may be interested. A listener is an object that waits for an event to occur and responds in some way when it does. AWT stands for the Abstract Windowing Toolkit, which is a package that contains classes related to Java GUIs.

Question 13

Which of the following components allows the user to select one of several options from a "drop down" menu?
A) check boxes
B) radio buttons
C) sliders
D) combo boxes
E) none of the above

Accepted Answer

Combo boxes allow the user to select one of several options from a "drop down" menu.

Question 14

Check boxes operate as a group, providing a set of mutually exclusive options.

Accepted Answer

Radio buttons operate as a group, providing a set of mutually exclusive options. Check boxes are buttons that can be toggled on or off using the mouse, indicating that a particular boolean condition is set or unset.

Question 15

A dialog box allows the user to select one of several options from a "drop down" menu.

Accepted Answer

A combo box allows the user to select one of several options from a "drop down" menu. A dialog box is a pop-up window that allows for user interaction.

Question 16

Which of the following components allows the user to enter typed input from the keyboard.
A) check boxes
B) radio buttons
C) sliders
D) combo boxes
E) none of the above

Accepted Answer

None of the listed components allow typed input. A text field allows typed input from the user.

Question 17

A _____________________ container is one that is managed by the underlying operating system on which the program is run, whereas a __________________ container is managed by the Java program itself.
A) heavyweight, lightweight
B) lightweight, heavyweight
C) content pane, applet
D) applet content pane
E) none of the above

Accepted Answer

A heavyweight container is one that is managed by the underlying operating system on which the program is run, whereas a lightweight container is managed by the Java program itself. An applet is an example of a heavyweight container. All visible elements of a Java interface are displayed in a frame's content pane.

Question 18

GUI is an acronym for _______________________.
A) graphical UML interface
B) graphical UML implementation
C) graphical user implementation
D) graphical user interface
E) none of the above

Accepted Answer

GUI stands for graphical user interface.

Question 19

The grid layout organizes components into a grid of rows and columns, and also allows components to span more than one cell.

Accepted Answer

The GridBag layout allows components to span more than one cell.

Question 20

Layout managers determine how components are visually presented.

Accepted Answer

Every container is managed by a layout manager, which determines how components are visually presented.

Quiz 6: Graphical User Interfaces

A panel is displayed as a separate window, but a frame can only be displayed as part of another container.

Which of the following layout managers organize the components from left to right, starting new rows as necessary?

Which of the following components can be toggled on or off using the mouse, indicating that a particular boolean condition is set or unset?

Which of the following classes play a role in altering a visual aspect of a component?

Which of the following event descriptions best describes the mouse entered event?

Which of the following is a fundamental idea of good GUI design?

A container is goverened by a(n) __________________, which determines exactly how the components added to the panel will be displayed.

Which of the following best describes a timer component?

A(n) _______________________ is a graphical window that pops up on top of any currently active window so that the user can interact with it.

A(n) ____________________ is an object that waits for an event to occur and responds in some way when it does.

Which of the following represents a dialog box that allows the user to select a file from a disk or other storage medium?

A(n) ___________________ is an object that defines a screen element used to display information or allow the user to interact with a program in a certain way.

Which of the following components allows the user to select one of several options from a "drop down" menu?

Check boxes operate as a group, providing a set of mutually exclusive options.

A dialog box allows the user to select one of several options from a "drop down" menu.

Which of the following components allows the user to enter typed input from the keyboard.

A ___ container is one that is managed by the underlying operating system on which the program is run, whereas a container is managed by the Java program itself.

GUI is an acronym for _______________________.

The grid layout organizes components into a grid of rows and columns, and also allows components to span more than one cell.

Layout managers determine how components are visually presented.