Assignments for EECS/CS284 Java

• May 7 - The purpose of this assignment is to introduce you to beginning Java programming concepts and to get you to find the Java compiler, learn how to edit, compile, and print Java source code files, and to learn how to print the output of your Java applications and applets.

  Write a Java application, similar to the Hello.java application, that will print your name. Write a Java applet, similar to the HelloApp.java applet, that will print your name on one of your web pages.

  Hand in a hardcopy of both your source code files and the output of both your programs. Email me the URL of the page with your applet. (I will be posting a list of student pages off the class web page - if you do not want your class page published, or if you would like your home page URL published instead (too), let me know in the email message.)

• May 9 - due May 14 - The purpose of this program is to give you an opportunity to practice loops and branching statements.

  Write a fortune teller in Java. (see sample solutions.) It will produce random fortunes of the form "You will get an A in your Java class and go to Hawaii and get rich." where the phrases are randomly chosen and the number of phrases is randomly chosen. Use this to get a random number (int)( Math.random() * 20) // generates a random number from 0 to 19

  Your program must have at least 10 different phrases (Make up your own.). Make both a fortune teller application and a fortune teller applet.

  Put your applet on your class page so I can see it. Hand in a hardcopy of both your source code files and the output of 3 runs of your application. (to get all 3 runs in 1 file, type script at the UNIX prompt (type man script if you want to know more about what you are doing). Then run your program 3 times. Then do d. Then lpr -PyerFavPrinter typescript)

  Make your applet come alive with color! import java.awt.Color and change the color of your text with g.setColor(Color.red) where g is your Graphics object. (There are lots of other colors besides red!)

• May 14 - due May 16 - The purpose of this assignment is to give you practice in identifying parts of classes and their interrelationships.

  For the Applet class, the Graphics class, and another class of your choice, draw an inheritance hierarchy and list all the class variables, instance variables, class methods, instance methods, and constants for each.

  Look here for the info you will need: explanations of classes' variables and methods and lecture material

• May 16 - due May 22 by 7pm in 1213 EECS - The purpose of this program is to give you practice creating and using classes.

  Add another subclass to the Rectangle class on the class homepage. Include at least 2 constructors for your new class. Write a Java application that creates at least one instance of each subclass (including yours) and uses access methods to print out the values of the variables. Write a Java applet that draws one object from each of the Rectangle subclasses - including your subclass. (See sample.)

  Hand in hardcopy of your new subclass, output from your application, and email me the url of your applet.

• May 21 - due May 23 - The purpose of this assignment is to give you practice using public, private, static, final, etc. and recognizing types.

  Make this program work by inserting the necessary key words in the lines with "*SLB*" on them. Note that there may be more than 1 keyword missing on a line. Email me the url of your working applet BEFORE CLASS THURSDAY The time stamp on the email message must be earlier than 11:30am May 23.

• May 23 - due May 29 by 7pm in 1213 EECS - The purpose of this program is to give you an opportunity to practice using threads.

  Write an application and an applet that uses threads. You can modify one of the sample applets in the Sun Java tutorial that uses threads or some other applet that uses threads, or you can make up your own thread code. The applet and application can do the same thing or different things.

  Grading of this program - Program points -> 1 point for each line of code that you write yourself (not part of the original sample) or that you modify, up to a max of 50. Style points -> same as usual (see the style sheet handed out on the first day of class) - that means that if you modify some sample code, you have to put the braces under the first letter of the first keyword, comment each end }, ETC.

  Hand in hardcopy of your application and your applet. Email me the URL of your applet and the URL(s) of the code you modified.

  See CourseRectangle objects THREADED!!!

  See Cool Multithreaded!!! applet - with source!!!

• May 28 - due May 30 - Study for the midterm on May 30. (These old C++ and C midterms will show you the STYLE of questions I ask.) Make a list of what aspects of Java you would like me to cover in the remaining lectures. Think about a Java project or projects (applications or applets) that you would like to do in the remaining weeks of the semester.

• May 30 - Midterm

• June 4 - due June 12 by 7pm in 1213 EECS - The purpose of this program is to give you an opportunity to practice creating user interfaces.

  Study Creating a User Interface from the Sun Java Tutorial, the AWT Tutorial and the Java Handbook code samples. Another good places to look are Phillipp Thorne's Java Homepage, and Media Elite.

  Create the user interface for your project - applet or application. Plan and execute the design of all your components. Put in stubs for the event handlers that you don't have time to implement. Hand in hardcopy of your code and a screen dump if it is an application or email me the URL if it is an applet.

• June 6 - due June 11 - Hand in a description of your project - what it will do, what the user can do, etc., including a sketch of the interface.

• June 11 - due June 13 - Study the Java tutorial sections on sound and images.

  (type man <command> to get instructions for the following UNIX utilities.)

  • Support for sound:
    • audiotool - audio play/record tool ( CAEN )
      audiotool [ -p ] [ -d device ] [ generic-tool-arguments ] [ audio-file ... ]

    • audioconvert - convert audio file formats (CAEN and ITD)
      audioconvert [ -pF ] [ -f outfmt ] [ -o outfile ] [ [ - i infmt ] [ file... ] ] ...
  • Support for images:
    xview (xv) (CAEN and ITD)

• June 13 - due June 18 - The purpose of this program is to give you an opportunity to get some work done on your project.

  Hand in hardcopy of your code, commented so someone else can understand your code, and a screen dump or hand drawing of your user interface.

  No late days will be allowed on this assignment. Hand in your commented code in whatever state it is in and be sure to show up for class on time!

• June 18 - due June 20 - The purpose of this assignment is to give you an opportunity to see other Java applets, appreciate the helpfulness of good style in reading programs, and get a break from endless coding. Grade the program 6 handed in by one of your classmates. You don't have to take points off - I will do that. Just mark all the coding and style errors. If you are doing a group project, get a copy of a different program to grade - this is not a group assignment. Your grade for Program 7 will be 100 - (the errors you made grading the program). Hand in the corrected program with your name at the top.

  Study the Java Tutorial section on communicating with other programs.

• June 18 - due June 20 - Study for the final exam (Mon. June 24, 4-6pm, in the regular classroom) and make corrections and additions to your project, which is to be handed in before the final exam. Note: the project does not have to be totally finished, it just has to work and do something cool and look like you have been working on it for 2-3 weeks.

Last Updated by S.L Bartlett on 6/12/96