Project 2: N-Body Simulation
Started: Tuesday 2/21 ;Due: 3/1, by the beginning of class
This assignment is also taken from the projects on the book's web site. In this case, the assignment is the
N-Body Simulation. After reading through that page, be sure to read my comments below for some
clarification and suggestions. I will discuss the underlying math and physics in class.
You should work on this project individually.
In order to do this program, you will need (1) the
stdlib.jarlibrary file provided by the book's authors; and (2) some other resource files you will need (such as the
planets.txtfile they talk about in their write-up) as well as some image and sound files to make things more interesting. The stdlib.jar file should be handled as explained in the next item; it is best to store the other resource files in your
stdlib.jarfile and unjar it into the
~/introcsfolder. You then need to configure the CLASSPATH environment so your shell knows how to find the class files in the stdlib library.
The checklist for the N-Body Simulation
gives useful tips on downloading from the COS 126 ftp site. You will need to download the contents of
- I recommend you read through checklist for the N-Body Simulation, in particular the section titled "Possible Progress Steps", before embarking on the programming.
- Finally, if you enjoy this and want to add some enhancements, there are some suggestions in the N-Body Simulation assignment page as well as in the checklist for the N-Body Simulation.
What you must do/hand in
Running your program with the supplied data file
planets.txt should result in the same behavior (including background image, images for the planets, and
the 2001 midi file being played) as the animation at the bottom of the N-Body Simulation assignment page.
You must hand in your java source file
You must also fill out the following readme.txt file. If you do any additional extra credit work, be sure to submit all files necessary to run your program, and give instruction for running it in the readme.txt file.
We will use this gradesheet when grading your lab.
Use the procedure described in our instructions on submitting code document.