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Answer 19

Question 20

Show the proper syntax for declaring a variable of type double and initializing its value to 5.5.

Answer 20

Question 21

Show the proper syntax for declaring a variable of type Double and initializing its value to 5.5.

Answer 21

Question 22

Show the proper syntax for extracting the value from a variable of type Double .

Answer 22

Question 23

True or false? In Java, the name of a reference variable evaluates to the address of the location in memory where the variable is stored.

Answer 23

Question 24

What is a legal identifier in Java?

Answer 24

Question 25

What are the rules for variable names in Java?

Answer 25

Question 26

What is meant by the scope of a Java variable?

Answer 26

Question 27

What are the four possible scope categories for a Java variable?

Answer 27

Question 28

What is a member variable?

Answer 28

Question 29

Where are local variables declared in Java?

Answer 29

Question 30

What is the scope of a local variable in Java?

Answer 30

Question 31

What defines a block of code in Java?

Answer 31

Question 32

What is the scope of a variable that is declared within a block of code that is defined within a method and which is a subset of the statements that make upthe method?

Answer 32

Question 33

What is the scope of a variable declared within the initialization clause of a for statement in Java? Provide an example code fragment.

Answer 33

Question 34

What are method parameters and what are they used for?

Answer 34

Question 35

What is the scope of a method parameter ?

Answer 35

Question 36

What are exception handler parameters ?

Answer 36

Question 37

Write a Java application that illustrates member variables (class and instance) , local variables, and method parameters.

Answer 37

Question 38

True or false? Member variables in a Java class can be initialized when the class is defined.

Answer 38

Question 39

How are method parameters initialized in Java?

Answer 39

Listings

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 39

Method parameters are initialized by the values passed to the method.

Back to Question 39

Answer 38

True.

Back to Question 38

Answer 37

See the application named member1 in this module for an example of such an application.

Back to Question 37

Answer 36

Exception handler parameters are arguments to exception handlers, which will be discussed in a future module.

Back to Question 36

Answer 35

The scope of a method parameter is the entire method for which it is a parameter.

Back to Question 35

Answer 34

Method parameters are the formal arguments of a method. Method parameters are used to pass values into and out of methods.

Back to Question 34

Answer 33

Java treats the scope of a variable declared within the initialization clause of a for statement to be limited to the total extent of the for statement. A sample code fragment follows where cnt is the variable being discussed:

Questions & Answers

what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
how to synthesize TiO2 nanoparticles by chemical methods
Zubear
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit 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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