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This module contains review questions and answers keyed to the module titled Java3000: The Guzdial-Ericson Multimedia Class Library.

Revised: Sat Apr 02 10:40:05 CDT 2016

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Table of contents

Preface

This module contains review questions and answers keyed to the module titled Java3000: The Guzdial-Ericson Multimedia Class Library .

The questions and the answers are connected by hyperlinks to make it easy for you to navigate from the question to the answer and back again.

Questions

Question 1 .

True or false? The multimedia library used in this course originated at MIT.

Answer 1

Question 2

True or false? Among other things, the Guzdial-Ericson multimedia class library makes it practical to write object-oriented programs for themanipulation of images in an interesting and educational way.

Answer 2

Question 3

True or false? The textbook for the course is available at no cost.

Answer 3

Question 4

True or false? Once you have downloaded the zip file containing the library, you will need to extract the folder named MediaComp from the zip file and store it somewhere on your computer's disk.

Answer 4

Question 5

True or false? The bookClasses folder contains javadoc documentation for the library in a folder named doc . You can view the documentation by going to the doc folder and opening the file named index.html in your browser.

Answer 5

Question 6

True or false? You will need to put the path to the bookClasses folder on your path in order to incorporate classes from the library into your programs.

Answer 6

Question 7

True or false? Commands similar to those shown in Listing 1 can be used to put the bookClasses library on the classpath :

Listing 1 . Question 7.
javac -cp .;M:\bookClasses *.java java -cp .;M:\bookClasses Prob01

Answer 7

Question 8

True or false? Commands similar to those shown in Listing 2 can be used to:

  • delete the class files from the current folder,
  • compile the source-code files in the current folder, and
  • execute the compiled version of a program named Prob01 in the current folder
Listing 2 . Question 8.
del *.class javac -cp .;M:\bookClasses *.javajava -cp .;M:\bookClasses Prob01

Answer 8

Question 9

True or false? You can put commands in a batch file and run the batch file to avoid having to type the commands each time you need to perform a specificoperation from the command line. In that case, you should add a pause command as the last command in the sequence.

Answer 9

Question 10

True or false? The program shown in Listing 3 causes the words Text Hello World to be displayed on the standard output device when the program is compiled and executed.

Listing 3 . Question 10.
class TextHelloWorld{ public static void main(String[]args){ System.out.println("Text Hello World");}//end main }//end class

Answer 10

Question 11

True or false? The code shown in Listing 4 can be compiled and run to produce the graphic output shown in Figure 1 .

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
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