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Putting data into the secondary array elements

The code interior to the inner loop simply calculates some numeric values and stores those values in the elements of the three secondary array objects.

Let's look at a picture

Here is a picture that attempts to illustrate what is really going on here. I don't know if it will make sense to you or not, but hopefully, it won't make thesituation any more confusing than it might already be.

[->] [1][1][1][1][1] [->] [1][2][3][4][5] [->] [1][3][5][7][9]

The primary array

The three large boxes on the left represent the individual elements of the three-element primary array. The length property for this array has a value of3. The arrows in the boxes indicate that the content of each of these three elements is a reference to one of the five-element arrays on the right.

The secondary arrays

Each of the three rows of five boxes on the right represents a separate five-element array object. Each element in each of those array objects containsthe int value shown. The length property for each of those arrays has a value of 5.

Access and display the array data

The code in the following fragment is another pair of nested for loops.

for(int i=0;i<myArray.length;i++){ for(int j=0;j<myArray[0].length;j++){System.out.print( myArray[i][j] + " ");}//end inner for loop System.out.println("");}//end outer for loop

In this case, the code in the inner loop accesses the contents of the individualelements in the three five-element arrays and displays those contents. If you understand the earlier code in this program, you shouldn't have any difficultyunderstanding the code in this fragment.

Back to Question 4

Answer 3

A. Compiler Error

Explanation 3

An incorrect statement

The following statement is not the proper way to create an array object in Java.

int myArray[3][5];

This statement caused the program to fail to compile, producing several error messages.

What is the correct syntax?

There are several different formats that can be used to create an array object in Java. One of the acceptable ways was illustrated by the code used in Question 2 . Three more acceptable formats are shown below.

int[][]myArrayA = new int[3][5]; int myArrayB[][] = new int[3][5];int myArrayC[][]; myArrayC = new int[3][5];

Two steps are required

The key thing to remember is that an array is an object in Java. Just like all other (non-anonymous) objects in Java, there are two steps involved in creating and preparing an object for use.

Declare a reference variable

The first step is to declare a reference variable capable of holding a reference to the object.

The second step

The second step is to create the object and to assign the object's reference to the reference variable. From that point on, the reference variable can beused to gain access to the object.

Two steps can often be combined

Although there are two steps involved, they can often be combined into a single statement, as indicated by the first two acceptable formats shown above.

Questions & Answers

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
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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?
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
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
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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