Question 1

To force the JFrame that encloses a window to resize itself automatically when a larger object is placed in the frame, use:

Accepted Answer

A)   the pack method
B)   the resize method
C)   the grow method
D)   the enlarge methodE) A) and D)
F) B) and D)

Question 2

What does the following statement do?
JTextArea textField = JTextArea(message, 25, 15) ;

Accepted Answer

A)   It creates a text area with 25 columns and 15 rows that will initially display the text stored in the String object message.
B)   It creates a text area with 25 columns and 15 rows that will initially display the text stored in the text area textField.
C)   It creates a text area with 25 rows and 15 columns that will initially display the text stored in the String object message.
D)   It creates a text area with 25 rows and 15 columns that will initially display the text "message".E) B) and D)
F) B) and C)

Question 3

A menu system may consist of each of the following EXCEPT:

Accepted Answer

A)   menu item
B)   separator bar
C)   menu bar
D)   It may have all the above.E) B) and C)
F) All of the above

Question 4

What will display when the following code is executed: JLabel label = new JLabel ("It is a beautiful morning.") ;
Labed.setIcon(SunnyFace.gif) ;

Accepted Answer

A)   A label with the text "It is a beautiful day." to the left of the SunnyFace image
B)   A label with the text "It is a beautiful day." to the right of the SunnyFace image
C)   A label with the text "It is a beautiful day." below the SunnyFace image
D)   A label with the text "It is a beautiful day." above the SunnyFace imageE) A) and B)
F) A) and C)

Question 5

If a user enters a value in the text box of an editable combo box and the value is NOT in the list, what will the method getSelectedItem return?

Accepted Answer

A)   The value that the user replaced
B)   The index of the item the user entered
C)   The value that appears in the text field, even if it is not in the combo box's list
D)   Nothing, since the item is not in the listE) A) and B)
F) A) and D)

Question 6

If a user enters a value in the text box of an editable combo box and the value is NOT in the list, what will the method getSelectedIndex return?

Accepted Answer

A)   The index of the item that the user replaced
B)   The index of the item the user entered
C)   -1
D)   0, since the item is not in the listE) All of the above
F) A) and B)

Question 7

A read-only text field uses the JReadOnlyTextField component.

Accepted Answer

A) True 
 B)False

Question 8

What will the following code do when it is executed?
JTextArea message = JTextArea(greetings, 50, 70) ;
JScrollPane scrollPane = new JScrollPane(message) ;

Accepted Answer

A)   It will create a JScrollPane object for the JTextArea object referenced by message and display a horizontal scroll bar on the text area.
B)   It will create a JScrollPane object for the JTextArea object referenced by message and display a vertical scroll bar on the text area.
C)   It will create a JScrollPane object for the JTextArea object referenced by message and display both vertical and horizontal scroll bars on the text area.
D)   It will create a JScrollPane object for the JTextArea object referenced by message and display no scroll bars on the text area.E) B) and C)
F) All of the above

Question 9

The ImageIcon class supports all the following file types, EXCEPT:

Accepted Answer

A)   BMP
B)   JPEG
C)   GIF
D)   PNGE) A) and D)
F) A) and C)

Question 10

When you create an instance of the JList class:

Accepted Answer

A)   you pass an array of objects to the constructor
B)   the list has a default selection mode of Single Selection Mode
C)   the values in the list are automatically sorted
D)   you must indicate the maximum number of list items the user may select at any one timeE) A) and B)
F) A) and C)

Question 11

If addressList is a JList component, what will the value of x be after the following statement is executed?
X = addressList.getSelectedIndex() ;

Accepted Answer

A)   The value of the first selected item
B)   The index of the first selected item
C)   An array of objects containing the items selected
D)   An array containing the indices of all the selected items in the listE) A) and B)
F) A) and C)

Question 12

The following statement: textList.setSelectionMode(
ListSelectModel.SINGLE_INTERVAL_SELECTION) ;

Accepted Answer

A)   sets the textList component to single selection mode
B)   sets the textList component to ListSelectModel
C)   sets the textList component to single interval selection mode
D)   sets the value of textList to SINGLE_INTERVAL_SELECTIONE) C) and D)
F) A) and B)

Question 13

A tool tip is:

Accepted Answer

A)   a guide provided by the Help menu as to which tool to use for various programming techniques
B)   another name for the Tool Bar
C)   used to make programming easier
D)   text that is displayed in a small box when the user holds the mouse cursor over a componentE) B) and D)
F) None of the above

Question 14

What will display when the following code is executed?
ImagePanel = new JPanel() ;
ImageLabel = new JLabel() ;
ImagePanel.Add(imageLabel) ;
ImageIcon sunnyFaceImage =
New ImageIcon("SunnyFace.gif") ;
ImageLabel.setIcon(sunnyFaceImage) ;
Pack() ;

Accepted Answer

A)   The JFrame that encloses the window will resize itself to accommodate the SunnyFace image.
B)   imagePanel will resize itself to accommodate the SunnyFace image.
C)   The SunnyFace image will resize itself to fit on imageLabel.
D)   The SunnyFace image will resize itself to fit on imagePanel.E) A) and D)
F) B) and D)

Question 15

When an item in a Jlist object is selected it generates a(n) :

Accepted Answer

A)   action listener event
B)   action performed event
C)   list selection listener event
D)   list selection eventE) B) and C)
F) A) and C)

Question 16

A ________ object specifies a component's width and height.

Accepted Answer

A)   Container
B)   Region
C)   Frame
D)   DimensionE) C) and D)
F) A) and D)

Question 17

When you write a change listener class method for a slider, it must implement the ChangeListener interface which is in the javax.swing.event package.

Accepted Answer

A) True 
 B)False

Question 18

A menu system may consist of each of the following, EXCEPT:

Accepted Answer

A)   check box menu item
B)   combo box menu item
C)   radio button menu item
D)   menu itemE) A) and C)
F) A) and D)

Question 19

This is a specialized dialog box that allows the user to select a color from a predefined palette of colors.

Accepted Answer

A)   Hue picker
B)   Color chooser
C)   Paint dialog box
D)   Palette selectorE) All of the above
F) A) and B)

Question 20

What will be the results of executing the following statements?
X.setEditable(true) ;
X.setText("Tiny Tim") ;

Accepted Answer

A)   The text field x will have the value "Tiny Tim" and be read-only.
B)   The text field x will have the value "Tiny Tim" and the user will be able to change its value.
C)   The text field x will have the value true.
D)   The text field x have the value "trueTiny Tim"E) B) and C)
F) A) and B)

Exam 13: Advanced GUI Applications

If addressList is a JList component, what will the value of x be after the following statement is executed? X = addressList.getSelectedIndex() ;

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If a user enters a value in the text box of an editable combo box and the value is NOT in the list, what will the method getSelectedIndex return?

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If a user enters a value in the text box of an editable combo box and the value is NOT in the list, what will the method getSelectedItem return?

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When you write a change listener class method for a slider, it must implement the ChangeListener interface which is in the javax.swing.event package.

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The ImageIcon class supports all the following file types, EXCEPT:

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What will be the results of executing the following statements? X.setEditable(true) ; X.setText("Tiny Tim") ;

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What will display when the following code is executed? ImagePanel = new JPanel() ; ImageLabel = new JLabel() ; ImagePanel.Add(imageLabel) ; ImageIcon sunnyFaceImage = New ImageIcon("SunnyFace.gif") ; ImageLabel.setIcon(sunnyFaceImage) ; Pack() ;

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A tool tip is:

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When you create an instance of the JList class:

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What will display when the following code is executed: JLabel label = new JLabel ("It is a beautiful morning.") ; Labed.setIcon(SunnyFace.gif) ;

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What does the following statement do? JTextArea textField = JTextArea(message, 25, 15) ;

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A read-only text field uses the JReadOnlyTextField component.

Correct AnswerverifiedShow Answer

When an item in a Jlist object is selected it generates a(n) :

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What will the following code do when it is executed? JTextArea message = JTextArea(greetings, 50, 70) ; JScrollPane scrollPane = new JScrollPane(message) ;

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The following statement: textList.setSelectionMode( ListSelectModel.SINGLE_INTERVAL_SELECTION) ;

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A ________ object specifies a component's width and height.

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This is a specialized dialog box that allows the user to select a color from a predefined palette of colors.

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A menu system may consist of each of the following, EXCEPT:

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A menu system may consist of each of the following EXCEPT:

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To force the JFrame that encloses a window to resize itself automatically when a larger object is placed in the frame, use:

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