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Answer 13

Question 14

True or False? If a SortedSet object contains references to String objects, the natural ascending sort would take the difference between upper case and lower case characters into account.

Answer 14

Question 15

True or False? A SortedSet object containing references to String objects will always take the difference between upper case and lower case characters into account when establishing the sort order.

Answer 15

Question 16

True or False? Specific sub-interfaces of the Collection interface can define requirements that do not apply to all sub-interfaces of the Collection interface.

Answer 16

Question 17

True or False? A collection that implements the List interface maintains its elements in ascending alphanumeric order.

Answer 17

Question 18

True or False? A collection that implements the List interface is an unordered collection.

Answer 18

Question 19

True or False? A collection that implements the List interface is allowed to contain duplicate values.

Answer 19

Question 20

True or False? The contracts of the methods in the List interface are the same as the contracts of the methods inherited from the Collection interface.

Answer 20

Question 21

True or False? The iterator method for the Collection interface returns an iterator over the elements in the collection in propersequence, where the sequence is determined by the numeric index.

Answer 21

Question 22

True or False? The iterator method for the List interface returns an iterator over the elements in the collection in proper sequence,where the sequence is determined by the numeric index.

Answer 22

Question 23

True or False? The SortedSet interface "guarantees that its iterator will traverse the set in ascending element order, sorted according tothe natural ordering of its elements (see Comparable ), or by a Comparator provided at sorted set creation time."

Answer 23

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.


Answer 23


Back to Question 23

Answer 22


Back to Question 22

Answer 21

False. The iterator method for the Collection interface returns an iterator over the elements in the collection where thereare no guarantees concerning the order in which the elements are returned by the methods of the Iterator object.

Back to Question 21

Answer 20

False. According to Oracle, "The List interface places additional stipulations, beyond those specified in the Collection interface, on the contracts of the iterator , add , remove , equals , and hashCode methods."

Back to Question 20

Answer 19

True. Unlike a collection that implements the Set interface, a collection that implements the List interface is typically allowed to contain duplicate values.

Back to Question 19

Answer 18

False. A collection that implements the List interface is an ordered collection (also known as a sequence) . According to Oracle, "The user of the interface has precise control over where in the list each element isinserted." Elements can be inserted and retrieved on the basis of their integer index (position in the list) using the following methods:

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
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
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
characteristics of micro business
for teaching engĺish at school how nano technology help us
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
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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.
what is the actual application of fullerenes nowadays?
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.
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.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
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.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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