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This module contains review questions and answers keyed to the module titled Java4060: Duplicate Elements, Ordered Collections, Sorted Collections, and Interface Specialization.

Revised: Wed Apr 06 12:34:49 CDT 2016

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Table of contents

Preface

This module is one in a collection of modules on Java Collections designed for teaching ITSE2321 - Object-Oriented Programming (Java) at Austin Community College in Austin, TX.

This module contains review questions and answers keyed to the module titled Java4060: Duplicate Elements, Ordered Collections, Sorted Collections, and Interface Specialization .

Once you study that module, you should be able to answer the review questions in this module.

The questions and the answers in this module are connected by hyperlinks to make it easy for you to navigate from the question to the answer and back again.

Questions

Question 1 .

True or False? The Java Collections Framework defines eight core interfaces, in two distinct trees.

Answer 1

Question 2

True or False? All eight of the core interfaces are rooted in the interface named Collection .

Answer 2

Question 3

True or False? A Set object can contain duplicate elements, but a List object cannot contain duplicate elements.

Answer 3

Question 4

True or False? The TreeSet class is a direct implementation of the Collection interface. (See the Java documentation.)

Answer 4

Question 5

True or False? The interface hierarchy for the Java Collections Framework is shown below with indentation used to show a parent-child relationship:

  • Collection
    • Set
      • SortedSet
    • List
    • Queue
    • Deque
  • Map
    • SortedMap

Answer 5

Question 6

True or False? The ArrayList class is a direct implementation of the Collection interface. (See the Java documentation.)

Answer 6

Question 7

True or False? In Java, a Set is a collection that contains no duplicate elements. The Set interface models the mathematical set abstraction.

Answer 7

Question 8

True or False? In Java, a List is an ordered collection (also known as a sequence) . The user of the List interface has precise control over where in the list each element is inserted. The user canaccess elements by their integer index (position in the list) , and search for elements in the list.

Answer 8

Question 9

True or False? The term ordered is a synonym for sorted .

Answer 9

Question 10

True or False? An ordered collection is one in which the position of each element is determined by its value relative to the values of itspredecessors and successors.

Answer 10

Question 11

True or False? A sorted collection is one in which the position of each element is determined by its value relative to the values of itspredecessors and successors.

Answer 11

Question 12

True or False? Ascending sort order is always required for a Java collection.

Answer 12

Question 13

True or False? Ascending sort order is always required for a Java collection that implements the SortedSet interface.

Questions & Answers

I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
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
How can I make nanorobot?
Lily
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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