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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?

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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

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
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.
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
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
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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