Note: You must have a Java Runtime Environment
installed to run these programs. You can install one (if necessary) by visiting Sun's installer
Yay! I passed the Sun Certified Java Programmer test!
So I can now put this logo here:
I wanted to learn Java and Swing, so I wrote some little Java games. I'm sure others have done them before me, but I don't care. I
did it just as a learning aid.
Most of these require a Java runtime environment equipped with the Swing libraries. They were developed with the version 1.3.1 JDK,
but probably will work with earlier JREs if you add swing libraries (which I believe can be downloaded separately from Sun).
I'm releasing them under the GPL, so you can go look at the source code if you like. If you do, I'd appreciate any suggestions you might
have about how I can write better Java code. I'm sure I made every mistake a newbie can make. That, and the code wasn't architected in
advance, so I'm sure the class hierarchy is a bit... haphazard.
The GPL requires you to give away the source if you distribute it. To make this easy, I stuffed a copy of the source in the actual JAR
file, so as long as you don't modify the JAR file, you can give it away to anyone you like with no further obligation.
Oh, I have a special trick for invoking platform specific code without
contaminating your program and forcing you to release different
versions. Read about it here if you're
familiar with Java programming.
I came across another little trick for loading JDBC drivers
This is the classic Othello (aka Reversi and many other) game. The game pieces are white on one side and black on the other. When
it's your turn, you add a new piece to the board of your color, flipping over any of your opponent's pieces that are between the new
piece and another of yours (in a straight line with no gaps). You may not place a piece down where no existing pieces would be
flipped. If you cannot place a piece at all, then your turn is skipped. The game ends when neither player can play. The player with
the most pieces flipped his direction wins.
Note I'm particularly interested to hear from anyone running Mac OS X. I wrote some special code to make it work
like a native Mac application when it's run on a mac. I'd like to know if that code works or not. You should notice that:
- The menu bar is at the top of the screen rather than in the window
- The application menu is named "JOthello", like it should be
- That the "About JOthello...", Preferences and Quit items in the JOthello menu work
- and that the Game/Quit and Help/About menu items do not show up
You are white, the computer is black. White goes first.
If you go into the preferences, you'll see two options: Difficulty and Algorithm. The Difficulty slider sets how "hard" the computer
thinks (or put another way, how far it looks ahead).
The algorithm selector selects how the computer looks at the board. It's sort of in the form of multiple personalities:
- Nick just wants to have more squares than you. After all, that's the object of the game.
- Miles wants more squares than you, but also tries hard to get edge squares and really tries hard to get corner
Download it here
- Fix the happy/angry/neutral faces. They are temporary placeholders. Maybe also make more phases.
Now you can even run it as an
Here's my second effort. It's one of those little sliding tile puzzles, except that it uses pictures instead of numbers. It has some
built in, and if you want you can load your own pictures.
Download it here
My third effort isn't really a game, and it isn't in Swing. It's MacXM,
which is a Macintosh UI for the XMPCR. I am writing it in
Java/Cocoa (and a tiny bit of C in the form of a JNI helper method). I
have another helpful hint, this time
about sharing file descriptors between Java and native methods.
You can find MacXM at its home
MacXM was nice, but it reached a rather limited audience (people with
both a mac and an XMPCR). I've decided to get going on the JXM project,
which will be a SWING UI for the XMPCR. Go check it out.