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Answer 18

What is the meaning of the following two images?

This image was inserted here simply to insert some space between the questions and the answers to keep them from being visible on the screen at thesame time.

The image is also an example of the kinds of things that we do in my course titled ITSE 2321, Object-Oriented Programming.

Missing image

This image was also inserted for the purpose of inserting space between the questions and the answers.

Missing image

Answers

Answer 18

Every instance of a class has its own set of instance variables. You can only access instance variables and instance methods through an object of the class. In this case, forty bytes of memory would be required to containthe instance variables of the ten objects.

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Answer 17

Only one, because out is a class variable of the System class.

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Answer 16

The runtime system allocates a class variable only once no matter how many instances of the class are instantiated. Thus, all objects of the classshare the same physical memory space for the class variable, and in this case, only four bytes of memory will be allocated to contain the allocated variables.

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Answer 15

The statement in Answer 14 calls the println method belonging to an object of the PrintStream class, which is referenced (pointed to) by the out variable, which is a class variable of the System class.

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Answer 14

System.out.println("Dick Baldwin");

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Answer 13

The println method can be accessed by joining the name of a variable that references a PrintStream object to the name of the println method using a period.

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Answer 12

The println method causes its argument to be displayed on the standard output device. (The standard output device is the screen by default, but can be redirected by the user at the operating system level.)

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Answer 11

The println method is an instance method of the PrintStream class.

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Answer 10

The out variable in the System class refers to an instance of the PrintStream class (a PrintStream object), which is automatically instantiated when the System class is loaded into the application.

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Answer 9

True.

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Answer 8

The code fragment accesses the contents of the class variable named out in the class named System .

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Answer 7

False. the variable named out defined in the System class is a reference variable that points to an object of another type.

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Answer 6

False. A class variable can be a primitive type, or it can be a reference variable that points to another object.

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Answer 5

True.

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Answer 4

False. The System class has several class variables (including out and in ) that are useful without the requirement to instantiate an object of the System class.

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Answer 3

False. While it is probably true that the main method must instantiate objects of other classes in order to accomplish much that is of value, this isnot a requirement. The main method in the "Hello World" program of this module does not instantiate objects of any class at all.

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Answer 2

False. The main method can access the variables and methods of objects instantiated from other classes. Otherwise, the flow of the program would bestuck within the main method itself and wouldn't be very useful.

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Answer 1

True.

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Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Jb0190r: Review: Using the System and PrintStream Classes
  • File: Jb0190r.htm
  • Published: 11/22/12
Disclaimers:

Financial : Although the Connexions site makes it possible for you to download aPDF file for this module at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, youshould be aware that some of the HTML elements in this module may not translate well into PDF.

I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version ofthe module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale onAmazon.com showing me as the author. I neither receive compensation for those sales nor do I know who does receive compensation. If youpurchase such a book, please be aware that it is a copy of a module that is freely available on cnx.org and that it was made andpublished without my prior knowledge.

Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.

-end-

Questions & Answers

With the aid of diagrams,compare the short run equilibrium positions of a perfect competitor and an imperfect competitors
Monlay Reply
What is the term consultation in economics?
Nthabiseng Reply
why is it that the long run Average cost curve does not touch that of the short run curve at its minimum?
Baah Reply
In few words, what is the role of interest rate in economy?
Carlos Reply
what is population
Nyakeh Reply
total number of people in a given area or country
Clement
the total number of people at a given area or country
Clement
total number of people in a given area or country
okhiria
What is price Elasticity of demand?.
Samuel
The responsiveness of the quantity of a commodity demanded to a change in its price, expressed as the percentage change in quantity demanded divided by the percentage change in price.
EMMANUEL
why is it that the long run Average cost doesn't touch the short run cost curve at its minimum?
Baah
what is supply
Precious
please rice and beans will be what type of demand but note we mostly cook it together
Oladosu Reply
complementary or joint demand
Yillah
but did you know you can demand for rice without beans so how is it joint or complementary
Oladosu
From my point of view, rice and beans are replaceable goods, hence they can't be complementary.
Carlos
what are the money value
Wisdom Reply
Nothing more than a purchase power, in other words, $100 now, must have the same value after 1 year.
Carlos
what is Monopoly
Rebecca Reply
what is money
Lawal Reply
It can be define as a big transaction that can control any business for one place to another base.
Akinlo
money is recognisable note to accept both parties selling and buying
Hassan
i don still understan
Rene
hey
Abdul
hi
Rene
money is anything generally accepted as a medium of exchange
Awwal
Money is anything generally accepted as a medium of exchange and for the settlement of goods and services .
Korda
hi good ppl, pls help out
Tumi
discuss human and natural resources as develop strategies ro improving living condition of citizens in developing countries.
Tumi
I don't understand the question.
Naomi
it's a form of currency used for 2 or more individuals or parties in order to reach their amicable personal or business attainment. one must understand that money itself can manifest in multiple fashions for which the individuals or parties adheres.
are u trying to say we shld discuss ways in which human natural resources help in improving living condition of citizens in developing countries?
Naomi
money is a legal thunder generally accepted as a medium of exchange for the payment of debt ,goods and services
Naomi
money is a way of payment.
Carlos
money is any thing that is generally accepted as a medium of exchange good for good and settlement of debt and means of payment
Yillah
money is nothing but a object which is used for exchange of goods and services.
Harshita
money is anything that is generally accepted as payment of goods and services and settlement of debt
Rebecca
what is demand
Melissa Reply
demand is where the customer is willing and able to buy goods and services during a given period of time
idk
demand is the ability and willingness of an individual to buy goods and services at a given price in a particular period of time
Alpha
demand is the ability to buy a specific quantities of goods and services at a given price and at a specific period of time
rosemary
what are the rules of demand
rosemary
Rosemary Nsebon, Do you mean laws of demand?
Alpha
what are the rules of demand
Rene
the rule of demand is the higher the price the lower the quantity demanded and the lower the price the higher the quantity demanded
mbi
thank
Rene
what is unemployment
Rebecca
unemployment is a scenario or a phenomenon in an economy whereby people are willing are able to work but cannot a job
mbi
Suppose you have a team of two workers: one is a baker and one is a chef. Explain why the kitchen can produce more meals in a given period of time if each worker specializes in what they do best than if each worker tries to do everything from appetizer to dessert. please I need a urgent answer
Oladosu Reply
Enables individuals and countries to consume a variety of goods and services
Iddrisu
what is the meaning of competency
Oladosu Reply
competency is an ability and courage to do something perfectly
Abdullahi
ability to perform some task
Segun
rival
Ray
thanks 🙏 it is also the same with the core competency
Oladosu
A sufficient supply
Ebenezer
Ebenezer you mean the (core competency) right?
Oladosu
what is mean,median and mode
Ikeh Reply
mean is the average number of a given data
Gallant
median is the middle number of a given data
Gallant
in a given data sorry
Mitchel
hi
Sajib
Pls am new here
Physcal
what are development bank in Nigeria
Adedigba Reply
.hi
Physcal
hi
Adedigba
hw
Physcal
and cool
Rosie
nice to meet everyone
Rosie
hi how are dears
Mumtaz
how can we development economic in our country
Mumtaz
hi
Charm
Payroll and​ 4p
Wasuroj
Agriculture
Wasuroj
Export
Wasuroj
Transport
Wasuroj
Change management​ and​ cerrancy
Wasuroj
Empoyee
Wasuroj
Lawyer army and​ Lawyer​
Wasuroj
animal husbandry essay
Rakuane Reply
what's the primary location of capital and money market respectively
ALIMI
Difference between extinct and extici spicies
Amanpreet Reply
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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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