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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.

Summary

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.

Miscellaneous

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

Application of nanotechnology in medicine
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
how nano science is used for hydrophobicity
Santosh
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Rafiq
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Mahi
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Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
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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
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
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sciencedirect big data base
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Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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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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