Question 1

Method can be used to set the layout manager of a container.

Accepted Answer

A)  setManager 
B)  setLayout 
C)  setLayoutManager 
D)  setGUILayout 
A)  setManager 
B)  setLayout 
C)  setLayoutManager 
D)  setGUILayout

Question 2

Which of the following is not a GUI component (control or widget)?

Accepted Answer

A)  String. 
B)  Button. 
C)  Menu. 
D)  Combo box. 
A)  String. 
B)  Button. 
C)  Menu. 
D)  Combo box.

Question 3

Method indicates that a Component should be refreshed on screen as soon as possible with a call to that control's paintComponent method.

Accepted Answer

A)  refresh 
B)  repaint 
C)  repaintComponent 
D)  redraw 
A)  refresh 
B)  repaint 
C)  repaintComponent 
D)  redraw

Question 4

The logical relationship between radio buttons is maintained by objects of what class?

Accepted Answer

A)  MutualExclusionGroup 
B)  RadioButtonGroup 
C)  Group 
D)  ButtonGroup 
A)  MutualExclusionGroup 
B)  RadioButtonGroup 
C)  Group 
D)  ButtonGroup

Question 5

Which layout manager is the default for JFrame?

Accepted Answer

A)  FlowLayout 
B)  BorderLayout 
C)  GridLayout 
D)  None of the above 
A)  FlowLayout 
B)  BorderLayout 
C)  GridLayout 
D)  None of the above

Question 6

Forgetting to register an event-handler object for a particular GUI component's event type causes .

Accepted Answer

A)  events of that type to be ignored. 
B)  all of the GUI component's events to be ignored. 
C)  a compilation error. 
D)  None of the above. 
A)  events of that type to be ignored. 
B)  all of the GUI component's events to be ignored. 
C)  a compilation error. 
D)  None of the above.

Question 7

Which of the following does not generate GUI events?

Accepted Answer

A)  Typing in a text field. 
B)  Selecting an item from a menu. 
C)  Viewing the text in a label. 
D)  Moving the mouse. 
A)  Typing in a text field. 
B)  Selecting an item from a menu. 
C)  Viewing the text in a label. 
D)  Moving the mouse.

Question 8

Which of the following is stateless?

Accepted Answer

A)  JButton. 
B)  JToggleButton. 
C)  JRadioButton. 
D)  JCheckBox. 
A)  JButton. 
B)  JToggleButton. 
C)  JRadioButton. 
D)  JCheckBox.

Question 9

Which of the following statements about anonymous inner classes is false?

Accepted Answer

A)  They are declared without a name. 
B)  They typically appear inside a method declaration. 
C)  They are declared with the anonymous keyword. 
D)  They can access their top-level class's members. 
A)  They are declared without a name. 
B)  They typically appear inside a method declaration. 
C)  They are declared with the anonymous keyword. 
D)  They can access their top-level class's members.

Question 10

Method paintComponent is called when:

Accepted Answer

A)  a lightweight Swing component is created. 
B)  a lightweight Swing component is displayed. 
C)  a lightweight Swing component is clicked. 
D)  an application exits. 
A)  a lightweight Swing component is created. 
B)  a lightweight Swing component is displayed. 
C)  a lightweight Swing component is clicked. 
D)  an application exits.

Question 11

Which of the following answers does not complete the sentence correctly?
An anonymous inner class .

Accepted Answer

A)  is frequently used for GUI event handling 
B)  is non-static 
C)  does not need a handle to its outer class to access its methods and variables 
D)  cannot be declared private 
A)  is frequently used for GUI event handling 
B)  is non-static 
C)  does not need a handle to its outer class to access its methods and variables 
D)  cannot be declared private

Question 12

Using layout managers ________.

Accepted Answer

A)  provides the greatest level of control over a GUI's appearance 
B)  can be faster than creating a GUI with absolute positioning 
C)  allows the programmer to specify the exact location of each GUI component with respect to the upper-left corner of the Container 
D)  allows the programmer to specify the exact location of each GUI component with respect to the lower-left corner of the Container 
A)  provides the greatest level of control over a GUI's appearance 
B)  can be faster than creating a GUI with absolute positioning 
C)  allows the programmer to specify the exact location of each GUI component with respect to the upper-left corner of the Container 
D)  allows the programmer to specify the exact location of each GUI component with respect to the lower-left corner of the Container

Question 13

The GUI event with which the user interacts is the .

Accepted Answer

A)  event effector. 
B)  event container. 
C)  event raiser. 
D)  event source. 
A)  event effector. 
B)  event container. 
C)  event raiser. 
D)  event source.

Question 14

The method setRolloverIcon is used to ________.

Accepted Answer

A)  Handle a key event 
B)  Change the button text 
C)  Change the button icon 
D)  All of the above 
A)  Handle a key event 
B)  Change the button text 
C)  Change the button icon 
D)  All of the above

Question 15

Which of the following choices completes the sentence correctly?
A(n) is a(n) .

Accepted Answer

A)  JToggleButton, JCheckBox 
B)  JToggleButton, JRadioButton 
C)  JButton, JToggleButton 
D)  JButton, AbstractButton 
A)  JToggleButton, JCheckBox 
B)  JToggleButton, JRadioButton 
C)  JButton, JToggleButton 
D)  JButton, AbstractButton

Question 16

A user of a one-button mouse can simulate pushing the middle button on a three-button mouse by holding the while clicking the left mouse button.

Accepted Answer

A)  Alt key. 
B)  Meta key. 
C)  Ctrl key. 
D)  Shift key. 
A)  Alt key. 
B)  Meta key. 
C)  Ctrl key. 
D)  Shift key.

Question 17

Which MouseEvent method can be used to determine if the Alt key is pressed?

Accepted Answer

A)  isAltPressed. 
B)  isAltDown. 
C)  getClickCount. 
D)  AltPressed. 
A)  isAltPressed. 
B)  isAltDown. 
C)  getClickCount. 
D)  AltPressed.

Question 18

The text "Hello there, my friend." is an example of what type of capitalization?

Accepted Answer

A)  sentence-style capitalization. 
B)  book-title capitalization. 
C)  Neither of the above. 
D)  Both of the above. 
A)  sentence-style capitalization. 
B)  book-title capitalization. 
C)  Neither of the above. 
D)  Both of the above.

Exam 12: Gui Components

Method can be used to set the layout manager of a container.

Which of the following is not a GUI component (control or widget)?

Method indicates that a Component should be refreshed on screen as soon as possible with a call to that control's paintComponent method.

The logical relationship between radio buttons is maintained by objects of what class?

Which layout manager is the default for JFrame?

Forgetting to register an event-handler object for a particular GUI component's event type causes .

Which of the following does not generate GUI events?

Which of the following is stateless?

Which of the following statements about anonymous inner classes is false?

Method paintComponent is called when:

Which of the following answers does not complete the sentence correctly? An anonymous inner class .

Using layout managers ________.

The GUI event with which the user interacts is the .

The method setRolloverIcon is used to ________.

Which of the following choices completes the sentence correctly? A(n) is a(n) .

A user of a one-button mouse can simulate pushing the middle button on a three-button mouse by holding the while clicking the left mouse button.

Which MouseEvent method can be used to determine if the Alt key is pressed?

The text "Hello there, my friend." is an example of what type of capitalization?

Introduction to Computers and Java

Introduction to Java Applications

Control Statements

Control Statements

Methods

Arrays and Arraylists

Introduction to Classes and Objects

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling

Graphics and Java 2D

Fundamentals of Characters and Strings

Files, Streams and Object Serialization

Generic Collections

Lambdas

Recursion

Searching, Sorting and Big O

Generic Classes and Methods

Custom Generic Data Structures

GUI

Concurrency

Accessing Databases With JDBC

JavaFX

Filters