Question 1

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 2

The class GridLayout constructs to hold components.

Accepted Answer

A) a horizontal grid with one row. 
B) a vertical grid with one column. 
C) a grid with multiple rows and columns. 
D) a square grid with the same number of rows as columns. 
A) a horizontal grid with one row. 
B) a vertical grid with one column. 
C) a grid with multiple rows and columns. 
D) a square grid with the same number of rows as columns.

Question 3

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

Accepted Answer

A) InputEvent,MouseEvent. 
B) ActionEvent,AdjustmentEvent. 
C) FocusEvent,WindowEvent. 
D) ContainerEvent,ComponentEvent. 
A) InputEvent,MouseEvent. 
B) ActionEvent,AdjustmentEvent. 
C) FocusEvent,WindowEvent. 
D) ContainerEvent,ComponentEvent.

Question 4

When a component is ,paintComponent clears the component's background before the component is displayed.

Accepted Answer

A) transparent. 
B) opaque. 
C) oblique. 
D) concave. 
A) transparent. 
B) opaque. 
C) oblique. 
D) concave.

Question 5

Which region is used by default when a Component is added to a BorderLayout?

Accepted Answer

A) NORTH. 
B) CENTER. 
C) WEST. 
D) LEFT. 
A) NORTH. 
B) CENTER. 
C) WEST. 
D) LEFT.

Question 6

JPasswordField contains method to obtain the data entered.

Accepted Answer

A) getInput. 
B) getPassword. 
C) getText. 
D) getEcho. 
A) getInput. 
B) getPassword. 
C) getText. 
D) getEcho.

Question 7

Which of the following expressions creates a JLabel that displays the text "Here is what I look like!" The JLabel should display Icon object face,and the JLabel's contents should be left aligned.

Accepted Answer

A) new JLabel( "Here is what I look like!",face,SwingConstants.LEFT ) 
B) new JLabel( "Here is what I look like!",face,SwingJustification.LEFT ) 
C) new JLabel( "Here is what I look like!",SwingConstants.LEFT,face ) 
D) new JLabel( "Here is what I look like!",SwingJustification.LEFT,face ) 
A) new JLabel( "Here is what I look like!",face,SwingConstants.LEFT ) 
B) new JLabel( "Here is what I look like!",face,SwingJustification.LEFT ) 
C) new JLabel( "Here is what I look like!",SwingConstants.LEFT,face ) 
D) new JLabel( "Here is what I look like!",SwingJustification.LEFT,face )

Question 8

Which of the following is not a type of button?

Accepted Answer

A) command buttons. 
B) toggle buttons. 
C) check boxes. 
D) All of the above are types of buttons. 
A) command buttons. 
B) toggle buttons. 
C) check boxes. 
D) All of the above are types of buttons.

Question 9

Which methods can be used to change the scrollbar policies?

Accepted Answer

A) setHoizontalPolicy,setVerticalPolicy. 
B) setHorizontal,setVertical. 
C) setHPolicy,setVPolicy. 
D) setHorizontalScrollBarPolicy,setVerticalScrollBarPolicy. 
A) setHoizontalPolicy,setVerticalPolicy. 
B) setHorizontal,setVertical. 
C) setHPolicy,setVPolicy. 
D) setHorizontalScrollBarPolicy,setVerticalScrollBarPolicy.

Question 10

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 11

The JOptionPane constant used to display an icon prompting the user for input is:

Accepted Answer

A) JOptionPane.ERROR_MESSAGE. 
B) JOptionPane.INFORMATION_MESSAGE. 
C) JOptionPane.QUESTION_MESSAGE. 
D) JOptionPane.WARNING_MESSAGE. 
A) JOptionPane.ERROR_MESSAGE. 
B) JOptionPane.INFORMATION_MESSAGE. 
C) JOptionPane.QUESTION_MESSAGE. 
D) JOptionPane.WARNING_MESSAGE.

Question 12

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 13

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 14

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 15

By default JScrollPane:

Accepted Answer

A) always displays scrollbars. 
B) never displays scrollbars. 
C) only displays scrollbars if they are needed. 
D) None of the above. 
A) always displays scrollbars. 
B) never displays scrollbars. 
C) only displays scrollbars if they are needed. 
D) None of the above.

Question 16

A MouseHandler object implements which two interfaces?

Accepted Answer

A) MouseListener and MouseActionListener. 
B) MouseListener and MouseMotionListener. 
C) MouseListener and MouseEventListener. 
D) MouseListener only. 
A) MouseListener and MouseActionListener. 
B) MouseListener and MouseMotionListener. 
C) MouseListener and MouseEventListener. 
D) MouseListener only.

Question 17

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 18

Adding a ButtonGroup object to a container:

Accepted Answer

A) is necessary for the functionality of the ButtonGroup to work properly. 
B) causes all the JRadioButtons in the group to have their event handlers registered. 
C) results in a compilation error. 
D) None of the above. 
A) is necessary for the functionality of the ButtonGroup to work properly. 
B) causes all the JRadioButtons in the group to have their event handlers registered. 
C) results in a compilation error. 
D) None of the above.

Question 19

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 20

Which of the following is the method used to display a dialog box to gather input?

Accepted Answer

A) showMessageDialog. 
B) getInput. 
C) inputDialog. 
D) showInputDialog. 
A) showMessageDialog. 
B) getInput. 
C) inputDialog. 
D) showInputDialog.

Exam 14: Gui Components: Part 1

The GUI event with which the user interacts is the .

The class GridLayout constructs to hold components.

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

When a component is ,paintComponent clears the component's background before the component is displayed.

Which region is used by default when a Component is added to a BorderLayout?

JPasswordField contains method to obtain the data entered.

Which of the following expressions creates a JLabel that displays the text "Here is what I look like!" The JLabel should display Icon object face,and the JLabel's contents should be left aligned.

Which of the following is not a type of button?

Which methods can be used to change the scrollbar policies?

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

The JOptionPane constant used to display an icon prompting the user for input is:

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

Method paintComponent is called when:

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

By default JScrollPane:

A MouseHandler object implements which two interfaces?

Which of the following does not generate GUI events?

Adding a ButtonGroup object to a container:

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 of the following is the method used to display a dialog box to gather input?

Introduction to Computers and Java

Introduction to Java Applications

Introduction to Classes and Objects

Control Statements: Part 1

Control Statements: Part 2

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling

Atm Case Study,part 1: Object-Oriented Design With the Uml

Atm Case Study,part 2: Implementing an Object-Oriented Design

Graphics and Java 2d

Strings

Files,streams and Object Serialization

Recursion

Searching, Sorting and Big O

Generic Collections

Generic Classes and Methods

Custom Generic Data Structures

Applets and Java Web Start

Multimedia: Applets and Applications

Gui, Part 2

Multithreading

Networking

Accessing Databases With Jdbc

Java Server Faces Web Applications

Ajax-Enabled Jsf Web Applications

Web Services

Filters