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Other capabilities

In addition to sorting and searching, the Arrays class provides several other methods that can be used to manipulate the contents of arrayobjects in Java.


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

  • A public final variable named length
  • An overridden version of the public method named clone
  • Default versions of all the other methods inherited from the class named Object

Every array object implements the Cloneable and Serializable interfaces.

A clone of a multidimensional array is shallow. Therefore, you should exercise caution when cloning array objects.

Because array objects implement the Serializable interface, they can be serialized and later reconstructed.

Every array also has an associated Class object.

The classes named Array and Arrays provide methods that you can use to work with array objects.

The Array class provides static methods to dynamically create and access Java array objects.

The Arrays class contains various methods for manipulating arrays (such as sorting and searching). It also contains a static factory method that allows arrays to be viewed as lists.

Class objects are required when using the methods of the Array class to dynamically create Java array objects.

There are nine predefined Class objects that represent the eight primitive types and void. They are accessed using the following syntax:boolean.class, int.class, etc.

Three ways to get a Class object are:

  • Class objects for primitive types: int.class , etc.
  • The getClass method
  • The forName method

The methods of the Array class make it possible to deal with one-dimensional array objects using a syntax that is completely devoid of squarebrackets. This is a method-oriented approach to the use of array objects. This makes it possible to treat array objects much the same as we treat ordinaryobjects in Java. The required syntax for multi-dimensional array objects is mostly devoid of square brackets.

The Arrays class provides methods for sorting and searching array objects as well as performing other operations on array objects as well.

Through a combination of the Arrays class and the Java Collections Framework, most of the sorting, searching, data structures, and collection needsthat you might have are readily available without a requirement for you to reinvent them.

One of the most important concepts in OOP is reuse, don't reinvent.

What's next?

The next module will explain the use of the this and super keywords.


This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Java OOP: Array Objects, Part 3
  • File: Java1626.htm
  • Published: 08/08/12

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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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