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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

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
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
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
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
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
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
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele 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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