Question 1

How do you add two buttons to the south area of a frame using the BorderLayout?

Accepted Answer

A)  Add them to a panel, then add the panel to the SOUTH 
B)  Add one to the SOUTH, then add the second one to the SOUTH 
C)  Add one to the SOUTH, then add the second one to the CENTER 
D)  Add one to the CENTER, then add the second one to the SOUTH 
A)  Add them to a panel, then add the panel to the SOUTH 
B)  Add one to the SOUTH, then add the second one to the SOUTH 
C)  Add one to the SOUTH, then add the second one to the CENTER 
D)  Add one to the CENTER, then add the second one to the SOUTH

Question 2

____________________ are round and have a black dot when selected.

Accepted Answer

A)  Swing components 
B)  Selection buttons 
C)  Radio buttons 
D)  Check boxes 
A)  Swing components 
B)  Selection buttons 
C)  Radio buttons 
D)  Check boxes

Question 3

Consider the following code snippet:
Class MouseClickedListener implements ActionListener
{
Public void mouseClicked(MouseEvent event)
{
Int x = event.getX();
Int y = event.getY();
Component.moveTo(x,y);
}
}
What is wrong with this code?

Accepted Answer

A)  The mouseClicked method cannot access the x and y coordinates of the mouse. 
B)  repaint() method was not called. 
C)  The class has implemented the wrong interface. 
D)  There is nothing wrong with this code. 
A)  The mouseClicked method cannot access the x and y coordinates of the mouse. 
B)  repaint() method was not called. 
C)  The class has implemented the wrong interface. 
D)  There is nothing wrong with this code.

Question 4

A ________ is a user-interface component with two states: checked and unchecked.

Accepted Answer

A)  radio button 
B)  check box 
C)  menu item 
D)  submenu item 
A)  radio button 
B)  check box 
C)  menu item 
D)  submenu item

Question 5

A complex GUI can be created with a set of nested panels. What should determine the components that go into a single panel?

Accepted Answer

A)  the type of components 
B)  the size of the components 
C)  the adjacency of the components 
D)  the names of the components 
A)  the type of components 
B)  the size of the components 
C)  the adjacency of the components 
D)  the names of the components

Question 6

What is the easiest way to create complex-looking GUI layouts?
I use the GridBagLayout manager
II nest panels, each with its own layout manager
III use multiple layout managers in the same container

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  I and III 
A)  I 
B)  II 
C)  III 
D)  I and III

Question 7

When method makeMenuItem is called, how many objects are being created?
Public JMenuItem makeMenuItem(final String menuLabel)
{
JMenuItem mi = new JMenuItem(menuLabel);
Class MyMenuListener implements ActionListener
{
Public void actionPerformed(ActionEvent

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  {
DoSomethingElse();
System.out.println(menuLabel);
}
}
Mi)addActionListener(new MyMenuListener());
Return mi;
} 
A)  1 
B)  2 
C)  3 
D)  4 
E)  {
DoSomethingElse();
System.out.println(menuLabel);
}
}
Mi)addActionListener(new MyMenuListener());
Return mi;
}

Question 8

When the user selects a menu item, the menu item sends a(n) ___________________.

Accepted Answer

A)  ActionEvent 
B)  ChangeEvent 
C)  ItemEvent 
D)  MouseEvent 
A)  ActionEvent 
B)  ChangeEvent 
C)  ItemEvent 
D)  MouseEvent

Question 9

Which elements of creating a graphical user interface are made easier by a GUI builder?
I creating event handlers
II configuring component properties
III adding components

Accepted Answer

A)  II 
B)  I and II 
C)  I and III 
D)  I, II and III 
A)  II 
B)  I and II 
C)  I and III 
D)  I, II and III

Question 10

If one ChangeListener is listening for three different JSlider objects, how can we determine which of the three sliders caused the event when the code enters the stateChanged method?

Accepted Answer

A)  It is not possible. 
B)  We can compare the sliders using the getSource method. 
C)  We can call the getValueIsAdjusting method. 
D)  We can compare the sliders using the getSliderSource method. 
A)  It is not possible. 
B)  We can compare the sliders using the getSource method. 
C)  We can call the getValueIsAdjusting method. 
D)  We can compare the sliders using the getSliderSource method.

Question 11

Which component can be added to a menu?
I JMenuBar
II JMenu
III JMenuItem

Accepted Answer

A)  I 
B)  I and II 
C)  II and III 
D)  I, II and III 
A)  I 
B)  I and II 
C)  II and III 
D)  I, II and III

Question 12

What can be determined about obj from the code below?
JMenuItem menuItem = new JMenuItem("Exit");
MenuItem.addActionListener(obj);

Accepted Answer

A)  The class of obj implements ActionListener 
B)  menuItem implements ActionListener 
C)  obj is of type MenuListener 
D)  obj is an object of an inner class 
A)  The class of obj implements ActionListener 
B)  menuItem implements ActionListener 
C)  obj is of type MenuListener 
D)  obj is an object of an inner class

Question 13

When adding a component to a container with the ____ layout, specify the NORTH, EAST, SOUTH, WEST, or CENTER position.

Accepted Answer

A)  border 
B)  grid 
C)  grid bag 
D)  flow 
A)  border 
B)  grid 
C)  grid bag 
D)  flow

Question 14

Consider the following code snippet:
Final RectangleComponent component = new RectangleComponent();
MouseListener listener = new MousePressListener();
Component.addMouseListener(listener);
______________
Mystery.add(component);
Mystery.setSize(FRAME_WIDTH, FRAME_HEIGHT);
Mystery.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Mystery.setVisible(true);
Which of the following statements completes this code?

Accepted Answer

A)  JPanel mystery = new JPanel(); 
B)  JComponent mystery = new JComponent(); 
C)  Frame mystery = new Frame(); 
D)  JFrame mystery = new JFrame(); 
A)  JPanel mystery = new JPanel(); 
B)  JComponent mystery = new JComponent(); 
C)  Frame mystery = new Frame(); 
D)  JFrame mystery = new JFrame();

Question 15

What is wrong with the following code?
Class ExitListener implements ActionListener
{
Public void actionPerformed(ActionEvent event)
{
System.exit(0);
}
}
ActionListener exitListener = new ExitListener();
JMenu exitMenu = new JMenu("Exit");
ExitMenu.addActionListener(exitListener);
JMenuBar menuBar = new JMenuBar();
MenuBar.add(exitMenu);

Accepted Answer

A)  The ExitListener class is not public 
B)  You cannot attach a listener to a menu, only to a menu item 
C)  You cannot add a menu to the menu bar, only a menu item 
D)  You need to use a menu listener, not an action listener 
A)  The ExitListener class is not public 
B)  You cannot attach a listener to a menu, only to a menu item 
C)  You cannot add a menu to the menu bar, only a menu item 
D)  You need to use a menu listener, not an action listener

Question 16

If the method makeMenuItem is called four times, how many MyMenuListener objects will be created?
Public JMenuItem makeMenuItem(String menuLabel)
{
JMenuItem mi = new JMenuItem(menuLabel);
Class MyMenuListener implements ActionListener
{
Public void actionPerformed(ActionEvent

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  {
DoSomething();
}
}
Mi)addActionListener(new MyMenuListener());
Return mi;
} 
A)  1 
B)  2 
C)  3 
D)  4 
E)  {
DoSomething();
}
}
Mi)addActionListener(new MyMenuListener());
Return mi;
}

Question 17

Suppose a JPanel with a BorderLayout manager contains two components: component1, which was added to the EAST, and component2, which was added to the WEST. Which parts of the JPanel appear?
I North
II South
III Center
IV West
V East

Accepted Answer

A)  I, II 
B)  I, II, III 
C)  III, IV and V 
D)  IV an V 
A)  I, II 
B)  I, II, III 
C)  III, IV and V 
D)  IV an V

Question 18

Which GUI element allows text entry from the program user?

Accepted Answer

A)  ButtonGroup 
B)  JComboBox 
C)  JSlider 
D)  JPanel 
A)  ButtonGroup 
B)  JComboBox 
C)  JSlider 
D)  JPanel

Question 19

A(n) ____ is used to capture mouse events.

Accepted Answer

A)  action listener 
B)  event listener 
C)  mouse listener 
D)  component listener 
A)  action listener 
B)  event listener 
C)  mouse listener 
D)  component listener

Question 20

Consider the following code snippet:
Class MouseClickedListener implements MouseListener
{
Public void mouseClicked(MouseEvent event)
{
Int x = event.getX();
Int y = event.getY();
Component.moveTo(x,y);
}
Public void mousePressed(MouseEvent event) {}
Public void mouseEntered(MouseEvent event) {}
Public void mouseExited(MouseEvent event) {}
}
What is wrong with this code?

Accepted Answer

A)  The class cannot have empty methods for the mousePressed, mouseEntered, and mouseExited methods. 
B)  The class failed to implement the mouseReleased method of the MouseListener interface. 
C)  The class has implemented the wrong interface. 
D)  The mouseClicked method cannot access the x and y coordinates of the mouse. 
A)  The class cannot have empty methods for the mousePressed, mouseEntered, and mouseExited methods. 
B)  The class failed to implement the mouseReleased method of the MouseListener interface. 
C)  The class has implemented the wrong interface. 
D)  The mouseClicked method cannot access the x and y coordinates of the mouse.

Exam 11: Advanced User Interfaces

How do you add two buttons to the south area of a frame using the BorderLayout?

____________________ are round and have a black dot when selected.

Consider the following code snippet: Class MouseClickedListener implements ActionListener { Public void mouseClicked(MouseEvent event) { Int x = event.getX(); Int y = event.getY(); Component.moveTo(x,y); } } What is wrong with this code?

A ________ is a user-interface component with two states: checked and unchecked.

A complex GUI can be created with a set of nested panels. What should determine the components that go into a single panel?

What is the easiest way to create complex-looking GUI layouts? I use the GridBagLayout manager II nest panels, each with its own layout manager III use multiple layout managers in the same container

When method makeMenuItem is called, how many objects are being created? Public JMenuItem makeMenuItem(final String menuLabel) { JMenuItem mi = new JMenuItem(menuLabel); Class MyMenuListener implements ActionListener { Public void actionPerformed(ActionEvent

When the user selects a menu item, the menu item sends a(n) ___________________.

Which elements of creating a graphical user interface are made easier by a GUI builder? I creating event handlers II configuring component properties III adding components

If one ChangeListener is listening for three different JSlider objects, how can we determine which of the three sliders caused the event when the code enters the stateChanged method?

Which component can be added to a menu? I JMenuBar II JMenu III JMenuItem

What can be determined about obj from the code below? JMenuItem menuItem = new JMenuItem("Exit"); MenuItem.addActionListener(obj);

When adding a component to a container with the ____ layout, specify the NORTH, EAST, SOUTH, WEST, or CENTER position.

If the method makeMenuItem is called four times, how many MyMenuListener objects will be created? Public JMenuItem makeMenuItem(String menuLabel) { JMenuItem mi = new JMenuItem(menuLabel); Class MyMenuListener implements ActionListener { Public void actionPerformed(ActionEvent

Suppose a JPanel with a BorderLayout manager contains two components: component1, which was added to the EAST, and component2, which was added to the WEST. Which parts of the JPanel appear? I North II South III Center IV West V East

Which GUI element allows text entry from the program user?

A(n) ____ is used to capture mouse events.

Introduction

Fundamental Data Types

Decisionseasy

Loops

Methods

Arrays and Arraylists

Inputoutput and Exception Handling

Objects and Classes

Inheritance and Interfaces

Graphical User Interfaces

Object-Oriented Design

Recursion

Sorting and Searching

The Java Collections Framework

Basic Data Structures

Tree Structures

Generic Classes

Streams and Binary Inputoutput

Multithreading

Internet Networking

Relational Databases

XML

Web Applications

Filters