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Answer 19

The name of the primitive type begins with a lower-case letter and the name of the wrapper type begins with an upper-case letter such as double and Double . Note that in some cases, however, that they are not spelled the same. For example, the Integer class is the wrapper for type int .

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Answer 18

Wrapper classes

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Answer 17

This has some ramifications as to how variables can be used (passing to methods, returning from methods, etc.) . For example, all variables of primitive types are passed by value to methods meaning that the code in the method only has access to a copy of the variable and does not have the abilityto modify the variable.

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Answer 16

False. Primitive data types in Java (int, double, etc.) are not true objects.

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Answer 15

True.

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Answer 14

False. The char type in Java is a 16-bit Unicode character.

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Answer 13

  • byte
  • short
  • int
  • long
  • float
  • double
  • char
  • boolean

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Answer 12

Primitive types contain a single value.

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Answer 11

Java supports both primitive types and reference (or object) types.

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Answer 10

In Java, a variable of a specified type is represented exactly the same way regardless of the platform on which the application or applet is being executed.

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Answer 9

False. In Java, all variables of type int contain signed values.

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Answer 8

All variables in Java must have a defined type . The definition of the type determines the set of values that can be stored in the variable and theoperations that can be performed on the variable.

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Answer 7

The syntax is shown in boldface below:

public static void main( String[] args )

In this case, the type of variable declared is an array of type String named args (type String[]) . The purpose of the String array variable in the argument list is to make it possible to capture arguments entered on the commandline.

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Answer 6

False. Fortunately, Java provides very strict type checking and generally refuses to compile statements with type mismatches.

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Answer 5

int firstVariable, secondVariable = 10;

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Answer 4

False: In Java, it is possible to initialize the value of a variable when it is declared, but initialization is not required. (Note however that in some situations, the usage of the variable may require that it be purposely initialized.) .

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Answer 3

To use a variable, you must notify the compiler of the name and the type of the variable (declare the variable).

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Answer 2

variable

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Answer 1

Listing 2 . Listing for Answer 1.
/*File simple4.java This application reads characters from the keyboard untilencountering the # character and echoes each character to the screen. The program terminates when the user entersthe # character. **********************************************************/class simple4 { //define the controlling class public static void main(String[]args) throws java.io.IOException {int ch1 = 0; System.out.println("Enter some text, terminate with #"); while( (ch1 = System.in.read() ) != '#')System.out.print((char)ch1); System.out.println("Goodbye");}//end main }//End simple4 class.

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Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Jb0200r: Review: Variables
  • File: Jb0200r.htm
  • Published: 11/23/12
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

what is the meaning of function in economics
Effah Reply
Pls, I need more explanation on price Elasticity of Supply
Isaac Reply
Is the degree to the degree of responsiveness of a change in quantity supplied of goods to a change in price
Afran
Discuss the short-term and long-term balance positions of the firm in the monopoly market?
Rabindranath Reply
hey
Soumya
hi
Mitiku
how are you?
Mitiku
can you tell how can i economics honurs(BSC) in reputed college?
Soumya
through hard study and performing well than expected from you
Mitiku
what should i prepare for it?
Soumya
prepare first, in psychologically as well as potentially to sacrifice what's expected from you, when I say this I mean that you have to be ready, for every thing and to accept failure as a good and you need to change them to potential for achievement of ur goals
Mitiku
parna kya hai behencho?
Soumya
Hallo
Rabindranath
Hello, dear what's up?
Mitiku
cool
Momoh
good morning
Isaac
pls, is anyone here from Ghana?
Isaac
Hw s every one please
Afran
Ys please I'm in Ghana
Afran
what is firms
Anteyi Reply
A firm is a business entity which engages in the production of goods and aimed at making profit.
Avuwada
What is autarky in Economics.
Avuwada
what is choice
Tia Reply
So how is the perfect competition different from others
Rev Reply
what is choice
Tia
please what type of commodity is 1.Beaf 2.Suagr 3.Bread
Alfred Reply
1
Naziru
what is the difference between short run and long run?
Ukpen Reply
It just depends on how far you would like to run!!!🤣🤣🤣
Anna
meaning? You guys need not to be playing here; if you don't know a question, leave it for he that knows.
Ukpen
pls is question from which subject or which course
Ada
Is this not economics?
Ukpen
This place is meant to be for serious educational matters n not playing ground so pls let's make it a serious place.
Docky
Is there an economics expert here?
Docky
Okay and I was being serous
Anna
The short run is a period of time in which the quantity of at least one inputs is fixed...
Anna
that is the answer that I found online and in my text book
Anna
Elacisity
salihu
Meaning of economics
Suraj Reply
It will creates rooms for an effective demands.
Chinedum Reply
different between production and supply
babsnof
Hii
Suraj
hlo
eshita
What is the economic?
Suraj
Economics is a science which study human behavior as a relationship between ends and scarce means which has an alternative use.
Mr
what is supply
babsnof
what is different between demand and supply
Debless Reply
Demand refers to the quantity of products that consumers are willing to purchase at various prices per time while Supply has to do with the quantity of products suppliers are willing to supply at various prices per time. find the difference in between
Saye
Please what are the effects of rationing Effect of black market Effects of hoarding
Atty Reply
monoply is amarket structure charecrized by asingle seller and produce a unique product in the market
Cali Reply
yes
Niraj
I want to know wen does the demand curve shift to the right
Nana
demand curve shifts to the right when there's an increase in price of a substitute or increase in income
kin
ask me anything in economics, I promise to try and do justice to the question, you can send me an email or message, I will answer
kin
what are the factor that change the curve right
Nana
explain the law of supply in simple .....
freshwater
the Law of supply: states that all factor being equal, when the price of a particular goods increase the supply will also increase, as it decreases the supply will also decrease
kin
@Nana the factor that changes or shift the d demand curve to the right is 1) the increase in price of a substitute good or commodity 2) increase in income
kin
you can send your questions I am Comr. Kin chukwuebuka
kin
different between bill of exchange n treasure bill
Nana
yes
Ada
so would you tell me what means an apportunity cost plz?
Cali
what is true cost
Akiti
your question isn't correct naadi
Anthonia
define an apportunity cost?
Cali
orukpe ,is my question whats wrong or u dont know anything?
Cali
In a simple term, it is an Alternative foregone.
Sule
opportunity cost is the next best value of a scale of preference
Akiti
Both of you are not correct.
Nelly
opportunity cost: is a forgone alternative
kin
Monopoly is where is one producer produces a given product with no close substitute
James
what is income effect?
Qwecou Reply
if you borrow $5000 to buy a car at 12 percent compounded monthly to be repaid over the next 4 year what is monthly payment
Nitish 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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