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Baldwin discusses various details regarding array objects in Java, including: members of an array object, interfaces implemented by array objects, Class objects and array objects, and the classes named Array and Arrays.

Revised: Fri Apr 01 17:06:27 CDT 2016

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Table of contents

Preface

This module is one of a series of modules designed to teach you about Object-Oriented Programming (OOP) using Java.

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This module discusses various details regarding the use of array objects in Java, including:

  • The members of an array object
  • The interfaces implemented by array objects
  • Class objects and array objects
  • The classes named Array and Arrays

Discussion and sample code

Members of an array object

An array object has the following members (in addition to the data stored in the object):

  • A public final variable named length , which contains the number of components of the array (length may be positive or zero)
  • A public method named clone . This method overrides the method of the same name in Object class.
  • Default versions of all the methods inherited from the class named Object , (other than clone , which is overridden as described above).

Implements Cloneable and Serializable

Also, every array object implements the Cloneable and Serializable interfaces. (Note that neither of these interfaces declares any methods.)

What is the Cloneable interface?

Here is what Sun has to say about the Cloneable interface:

"A class implements the Cloneable interface to indicate to the Object.clone() method that it is legal for that method to make a field-for-field copy of instances of that class. Attempts to clone instancesthat do not implement the Cloneable interface result in the exception CloneNotSupportedException being thrown."

Thus, the fact than an array object implements the Cloneable interface makes it possible to clone array objects.

A cloned array is shallow

While it is possible to clone arrays, care must be exercised when cloning multidimensional arrays. That is because a clone of a multidimensional array isshallow.

What does shallow mean?

Shallow means that the cloning process creates only a single new array.

Questions & Answers

what is variations in raman spectra for nanomaterials
Jyoti Reply
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
yes that's correct
Professor
I think
Professor
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
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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
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
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
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Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
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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 did you get the value of 2000N.What calculations are needed to arrive at it
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