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Answer 13

Question 14

True or False? There is a class named Arrays that contains various methods for manipulating arrays (such as sorting and searching) . The Arrays class contains many overloaded versions of the sort method. As usual, each overloaded version of the sort method requires a different argument list.

Answer 14

Question 15

Given: Listing 1 makes two calls to overloaded sort methods of the Arrays class using the following overloaded methods. (Note that I omitted generics syntax from the signatures because generics is beyond the scope of this course .)

  • sort(Object[] a)
  • sort(Object[] a, Comparator c)

True or False? In Listing 1 , the call to the first sort method in the above list produces the following output:

Tom TOM Joe JOE Bill BILL

Answer 15

Question 16

True or False? In Listing 1 , the call to the second sort method in the above list produces the following output:

Tom TOM Joe JOE Bill BILL

Answer 16

Listings

What is the meaning of the following two images?

These images were 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.

Spacer image of a rabbit and a penguin.

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

Spacer image of a penguin and some houses.

Answers

Answer 16

True.

Back to Question 16

Answer 15

False. Here is what the documentation has to say about this overloaded version of the Arrays.sort method:

Sorts the specified array of objects into ascending order, according to the natural ordering of its elements. All elements in the array must implementthe Comparable interface.

According to that specification, the output would be:

BILL Bill JOE Joe TOM Tom

Back to Question 15

Answer 14

True.

Back to Question 14

Answer 13

True.

Back to Question 13

Answer 12

True.

Back to Question 12

Answer 11

False. By default, a Vector object does not sort the elements. Therefore, the output order is the same as the input order shown inthe fillIt method.

Joe Bill Tom JOE BILL TOM

Back to Question 11

Answer 10

True.

Back to Question 10

Answer 9

True.

Back to Question 9

Answer 8

False. The position of each element in an ordered collection is determined by a numeric index associated with the element and is independent ofthe value of the element.

Back to Question 8

Answer 7

True.

Back to Question 7

Answer 6

False. Because a Vector object is a List object, (and not a Set object) it is allowed to contain duplicate elements.

Back to Question 6

Answer 5

False. A Vector object is a List object. The Vector class implements the Collection interface and the List interface but not the Set interface.

Back to Question 5

Answer 4

Collection data

Joe Bill Tom JOE BILL TOM

Raw array data

Joe Bill Tom JOE BILL TOM

Natural order sorted array data

BILL Bill JOE Joe TOM Tom

Custom order sorted array data

Tom TOM Joe JOE Bill BILL

Collection data

Joe Bill Tom JOE BILL TOM

Back to Question 4

Answer 3

True.

Back to Question 3

Answer 2

True.

Back to Question 2

Answer 1

False. The Collection interface declares a method named toArray , which can be called on a Collection object to "return an array containing all of the elements in this collection whose runtime type is that ofthe specified array" .

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
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
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
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
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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
While the American heart association suggests that meditation might be used in conjunction with more traditional treatments as a way to manage hypertension
Beverly Reply
in a comparison of the stages of meiosis to the stage of mitosis, which stages are unique to meiosis and which stages have the same event in botg meiosis and mitosis
Leah 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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