# 3.25 Java3024r review

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This module contains review questions and answers keyed to the module titled Java3024: Mirroring Images.

Revised: Mon Apr 04 09:53:24 CDT 2016

## Preface

This module contains review questions and answers keyed to the module titled Java3024: Mirroring Images .

The questions and the answers are connected by hyperlinks to make it easy for you to navigate from the question to the answer and back again.

## Question 1.

Given the input image shown in Figure 1 , which of the following output images is produced by the code in Listing 1 ?

A. Figure 2

B. Figure 3

Listing 1 . Question 1.
```/*File Java3024ra Copyright 2013 R.G.Baldwin *********************************************************/import java.awt.Graphics2D; import java.awt.geom.AffineTransform;import java.awt.geom.Rectangle2D; import java.awt.Graphics;public class Java3024ra{ public static void main(String[]args){ new Java3024raRunner().run();}//end main method }//end class Java3024ra//======================================================// class Java3024raRunner{public void run(){ Picture pix = new Picture("Prob02a.jpg");pix = rotatePicture(pix,35); pix = mirrorUpperQuads(pix);pix = mirrorHoriz(pix); pix.explore();System.out.println(pix); }//end run//----------------------------------------------------// private Picture rotatePicture(Picture pix,double angle){ AffineTransform rotateTransform =new AffineTransform(); rotateTransform.rotate(Math.toRadians(angle),pix.getWidth()/2, pix.getHeight()/2);Rectangle2D rectangle2D = pix.getTransformEnclosingRect(rotateTransform);int resultWidth = (int)(rectangle2D.getWidth()); int resultHeight = (int)(rectangle2D.getHeight());AffineTransform translateTransform = new AffineTransform();translateTransform.translate( (resultWidth - pix.getWidth())/2,(resultHeight - pix.getHeight())/2); translateTransform.concatenate(rotateTransform);Picture result = new Picture( resultWidth,resultHeight);Graphics2D g2 = (Graphics2D)result.getGraphics(); g2.drawImage(pix.getImage(),translateTransform,null);return result; }//end rotatePicture//----------------------------------------------------// private Picture mirrorUpperQuads(Picture pix){Pixel leftPixel = null; Pixel rightPixel = null;int midpoint = pix.getWidth()/2; int width = pix.getWidth();for(int row = 0;row<pix.getHeight()/2;row++){ for(int col = 0;col<midpoint;col++){ leftPixel = pix.getPixel(col,row);rightPixel = pix.getPixel(width-1-col,row); rightPixel.setColor(leftPixel.getColor());}//end inner loop }//end outer loopreturn pix; }//end mirrorUpperQuads//----------------------------------------------------// private Picture mirrorHoriz(Picture pix){Pixel topPixel = null; Pixel bottomPixel = null;int midpoint = pix.getHeight()/2;int height = pix.getHeight(); for(int col = 0;col<pix.getWidth();col++){ for(int row = 0;row<midpoint;row++){ topPixel = pix.getPixel(col,row);bottomPixel = pix.getPixel(col,height-1-row); bottomPixel.setColor(topPixel.getColor());}//end inner loop }//end outer loopreturn pix; }//end mirrorHoriz//----------------------------------------------------// }//end class Java3024raRunner```

Figure 1 - Prob02a.jpg.

Figure 2 - Possible output image.

Figure 3 - Possible output image.

## Listings

What is the meaning of the following two images?

This image was inserted here simply to insert some space between the questions and the answers to keep them from being visible on the screen at thesame time.

The image is also an example of the kinds of things that we do in my course titled ITSE 2321, Object-Oriented Programming.

This image was also inserted for the purpose of inserting space between the questions and the answers.

The code in Listing 1 produces the output image shown in Figure 2 .

## Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
• Module name: Java3024r Review
• File: Java3024r.htm
• Published: 02/18/13
Disclaimers:

Financial : Although the Connexions site makes it possible for you to download aPDF file for this module at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, youshould be aware that some of the HTML elements in this module may not translate well into PDF.

I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version ofthe module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale onAmazon.com showing me as the author. I neither receive compensation for those sales nor do I know who does receive compensation. If youpurchase such a book, please be aware that it is a copy of a module that is freely available on cnx.org and that it was made andpublished without my prior knowledge.

Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.

-end-

where we get a research paper on Nano chemistry....?
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
what about nanotechnology for water purification
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
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
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?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
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
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
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?
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
why we need to study biomolecules, molecular biology in nanotechnology?
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
why?
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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