Question 1

Applets are important because the can be used to

Accepted Answer

A)  extend the capabilities of a web page. 
B)  process large data files. 
C)  run other programs on the user's system. 
D)  keep the doctor away. 
A)  extend the capabilities of a web page. 
B)  process large data files. 
C)  run other programs on the user's system. 
D)  keep the doctor away. A

Question 2

In the following code,what does getDocumentBase()return? play(getDocumentBase(),"mysound.wav");

Accepted Answer

A)  A URL object containing the location of the applet's .class file 
B)  A URL object containing the location of the HTML file that invoked the applet 
C)  The HTML location "mysound.wav" 
D)  The sound file itself 
A)  A URL object containing the location of the applet's .class file 
B)  A URL object containing the location of the HTML file that invoked the applet 
C)  The HTML location "mysound.wav" 
D)  The sound file itself B

Question 3

Which tag will produce largest text?

Accepted Answer

A)  Hello 
B)  Hello 
C)  Hello 
D)  Hello 
A)  Hello 
B)  Hello 
C)  Hello 
D)  Hello D

Question 4

An applet using a Swing GUI extends which class?

Accepted Answer

A)  Applet 
B)  JApplet 
C)  JSwing 
D)  JFrame 
A)  Applet 
B)  JApplet 
C)  JSwing 
D)  JFrame

Question 5

If a frame component is 300 pixels wide and 200 pixels high,the upper,right-hand corner has (X,Y)coordinates of

Accepted Answer

A)  (0,0) 
B)  (300,0) 
C)  (200,300) 
D)  (299,0) 
A)  (0,0) 
B)  (300,0) 
C)  (200,300) 
D)  (299,0)

Question 6

Which of the following is not a valid AWT class?

Accepted Answer

A)  Panel 
B)  Applet 
C)  TextArea 
D)  JMenu 
A)  Panel 
B)  Applet 
C)  TextArea 
D)  JMenu

Question 7

Given the following code,how many times per second will the TimerListener event be generated? Timer timer = new Timer(1000,new TimerListener());

Accepted Answer

A)  1 
B)  10 
C)  100 
D)  1000 
A)  1 
B)  10 
C)  100 
D)  1000

Question 8

The delay parameter in the Timer constructor is the amount of time between action events,measured in milliseconds.

Accepted Answer

A) True 
 B)False

Question 9

The play method will load and play a sound file once,then release it for garbage collection.The getAudioClip method will load the sound file and may assign the location of the sound file to a variable so it may be invoked many times.

Accepted Answer

A) True 
 B)False

Question 10

When you extend an interface,you must implement all the methods defined in the interface.If you are interested in only one or two mouse events,you can extend the _______ class which implements the MouseListener interface,but does not require you to write all the functions in the interface.

Accepted Answer

A)  MouseAdapter 
B)  MouseExtender 
C)  MouseMotionAdapter 
D)  MouseMotionExtender 
A)  MouseAdapter 
B)  MouseExtender 
C)  MouseMotionAdapter 
D)  MouseMotionExtender

Question 11

Which of the following will load the applet,TestApplet?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 12

Given the following code,how many times per second will the TimerListener event be generated? Timer timer = new Timer(500,new TimerListener());

Accepted Answer

A)  5 
B)  50 
C)  2 
D)  500 
A)  5 
B)  50 
C)  2 
D)  500

Question 13

One way of viewing the results of the applet which is invoked in the HTML document TestApplet.html,is to enter the following at the command prompt.

Accepted Answer

A)  appletviewer TestApplet.html 
B)  appleviewer TestApplet 
C)  viewapplet TestApplet.html 
D)  view TestApplet 
A)  appletviewer TestApplet.html 
B)  appleviewer TestApplet 
C)  viewapplet TestApplet.html 
D)  view TestApplet

Question 14

For all Swing components except JApplet and JFrame,you should override the paintComponent method instead of the paint method.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following can a mouse listener respond to?

Accepted Answer

A)  The mouse button is pressed 
B)  The mouse button is clicked 
C)  The mouse cursor enters a component's screen space 
D)  All of the above 
A)  The mouse button is pressed 
B)  The mouse button is clicked 
C)  The mouse cursor enters a component's screen space 
D)  All of the above

Question 16

The browser creates an instance of the applet class automatically.

Accepted Answer

A) True 
 B)False

Question 17

Everything that appears between these tags in an HTML document is the content of the Web page.

Accepted Answer

A)   and  
B)   and  
C)   and  
D)   and  
A)   and  
B)   and  
C)   and  
D)   and

Question 18

If you want to make sure that an applet is compatible with all Java-enabled browsers,use Swing components instead of AWT.

Accepted Answer

A) True 
 B)False

Question 19

The delay parameter in the Timer constructor is the amount of time between action events,measured in microseconds.

Accepted Answer

A) True 
 B)False

Question 20

In an applet,events are handled

Accepted Answer

A)  with special applet event listeners. 
B)  differently,depending upon which computer is running the applet. 
C)  with event listeners exactly as they are in GUI applications. 
D)  by always terminating the applet. 
A)  with special applet event listeners. 
B)  differently,depending upon which computer is running the applet. 
C)  with event listeners exactly as they are in GUI applications. 
D)  by always terminating the applet.

Exam 14: Applets and More

Applets are important because the can be used to

In the following code,what does getDocumentBase()return? play(getDocumentBase(),"mysound.wav");

Which tag will produce largest text?

An applet using a Swing GUI extends which class?

If a frame component is 300 pixels wide and 200 pixels high,the upper,right-hand corner has (X,Y)coordinates of

Which of the following is not a valid AWT class?

Given the following code,how many times per second will the TimerListener event be generated? Timer timer = new Timer(1000,new TimerListener());

The delay parameter in the Timer constructor is the amount of time between action events,measured in milliseconds.

The play method will load and play a sound file once,then release it for garbage collection.The getAudioClip method will load the sound file and may assign the location of the sound file to a variable so it may be invoked many times.

When you extend an interface,you must implement all the methods defined in the interface.If you are interested in only one or two mouse events,you can extend the _______ class which implements the MouseListener interface,but does not require you to write all the functions in the interface.

Which of the following will load the applet,TestApplet?

Given the following code,how many times per second will the TimerListener event be generated? Timer timer = new Timer(500,new TimerListener());

One way of viewing the results of the applet which is invoked in the HTML document TestApplet.html,is to enter the following at the command prompt.

For all Swing components except JApplet and JFrame,you should override the paintComponent method instead of the paint method.

Which of the following can a mouse listener respond to?

The browser creates an instance of the applet class automatically.

Everything that appears between these tags in an HTML document is the content of the Web page.

If you want to make sure that an applet is compatible with all Java-enabled browsers,use Swing components instead of AWT.

The delay parameter in the Timer constructor is the amount of time between action events,measured in microseconds.

In an applet,events are handled

Introduction to Computers and Java

Java Fundamentals

Decision Structures

Loops and Files

Methods

A First Look at Classes

A First Look at Gui Applications

Arrays and the Arraylist Class

A Second Look at Classes and Objects

Text Processing and More About Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Advanced Gui Applications

Recursion

Sorting, Searching, and Algorithm Analysis

Generics

Collections

Array-Based Lists

Linked Lists

Stacks and Queues

Binary Trees, Avl Trees, and Priority Queues

Filters