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Listing 4 - Write the Java application described below.

/*File Prob04 Copyright 2012 R.G.Baldwin

Write a program named Prob04 that uses the class definition shown below and Ericson's media libraryalong with the image file named Prob04.jpg to produce the graphic output image shown in Figure 4 below.

Click Prob04.java to download a Java source file containing the solution to this program.

In addition to the output image, your program must display your name and the other text shownbelow on the command-line screen:

Display your name here. Picture, filename Prob04.jpg height 274 width 365*********************************************************/ public class Prob04{//DO NOT MODIFY THE CODE IN THIS CLASS DEFINITION. public static void main(String[]args){ Prob04Runner obj = new Prob04Runner();DigitalPicture digitalPicture = obj.getDigitalPicture();System.out.println(digitalPicture); digitalPicture.show();}//end main }//end class Prob04//End program specifications.

Figure 4 - Required output image for Prob04.

Missing image

Program 5

Discussion

The following is a non-exhaustive list of concepts that you need to understand along with knowledge and skills that you need to possess in order tosuccessfully write this program and/or understand the given solution in Prob05.java . Some of these items are general in nature and some are specific to the use of Ericson's multimedia library. I won't repeat the items listed above.Instead, I will concentrate on new concepts, knowledge, and skills not included in the above lists.

  • How to design and implement an algorithm that will transform Prob05a.jpg and Prob05b.jpg into the images shown in Figure 5 and Figure 6 .
  • What it means for the method named getDigitalPictures to return a reference to an object as type DigitalPicture[] .
  • What you can do with a reference of type DigitalPicture[] .
  • The implications of the fact that calling the show method each of the elements of the array of type DigitalPicture[] produces a different output image.
Listing 5 - Write the Java application described below.

/*File Prob05 Copyright 2012 R.G.Baldwin

Write a program named Prob05 that uses the class definition shown below and Ericson's media libraryalong with the image files named Prob05a.jpg and Prob05b.jpg to produce the pair of graphic output images shown in Figure 5 and Figure 6 below.

Note that unless you know how to position the output images on the screen, they will both end up in theupper-left corner of the screen with one image partially or completely covering the other image. Use your mouseto drag and separate the images.

Click Prob05.java to download a Java source file containing the solution to this program.

In addition to the output images mentioned above, your program must display your name and the other text shownbelow on the command-line screen:

Display your name here. Picture, filename Prob05b.jpg height 309 width 412Picture, filename Prob05a.jpg height 274 width 365 *********************************************************/public class Prob05{ //DO NOT MODIFY THE CODE IN THIS CLASS DEFINITION.public static void main(String[] args){Prob05Runner obj = new Prob05Runner(); DigitalPicture[]digitalPictures = obj.getDigitalPictures();System.out.println(digitalPictures[0]);digitalPictures[0].show();System.out.println(digitalPictures[1]);digitalPictures[1].show();}//end main }//end class Prob05//End program specifications.

Figure 5 - First required output image for Prob05.

Missing image

Figure 6 - Second required output image for Prob05.

Missing image

Miscellaneous Information

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Java OOP: ITSE 2321 Practice Group 1
  • File: PracticeGroup01.htm
  • Published: 08/03/12
Disclaimers:

Financial : Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware 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 of the module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale on Amazon.com showing me as the author. Ineither receive compensation for those sales nor do I know who does receive compensation. If you purchase such a book, please beaware that it is a copy of a module that is freely available on cnx.org and that it was made and published withoutmy prior knowledge.

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

-end-

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