It occurred to me that I've written some useful code for the various
projects on this page. However, people may not actually have any use whatsoever for
my projects (for shame) and could miss some code that they need for an
application they're working on. This page is a
collection of classes and modules which are handy by themselves that I originally
wrote for some project here. As
usual, everything here is free and covered by the
GNU General Public License.
MidiPlayer.java (9.04 kb) A simple class to play a single MIDI file or a list of files. It also supports looping the playlist, which is not as easy as it should be.
PathResolver.java (9.43 kb) This is an abstract class that contains
two static methods for resolving absolute and relative paths. For
example:
PathResolver.getRelativePath("c:\\folder1\\sub-folder1\\","c:\\folder2\\")
--> "..\\..\\folder2\\"
PathResolver.getAbsolutePath("c:\\folder1\\sub-folder1\\","..\\..\\folder2\\")
--> "c:\\folder2\\"
LaunchBrowser.java (7.98 kb) This is a class that launches the OS default web
browser from a Java application. When I was working on
Jail
I wanted to be able to launch the help files from a menu. Since Java is
platform independent there is no simple way to launch a web browser. My
first idea was to write a lightweight HTML container to display the help
files but what I came up with was so monstrous that I'd be embarrassed
to post it. Although I consulted a number of articles and discussion
forums on this topic, the resulting code for this class was original
work.
IniFile.java (7.53 kb) This is a class to read/write old-school .ini
files from Java. I first wrote this for
Hapsby
to store user preferences. I suppose this
should be obsolete with
the introduction of the Properties API in JDK 1.4. However, I've found
the Properties API to be unnecessarily complicated so I'm sticking with
.ini files.
NumberConverter (10.1 kb) There are three classes in here that at
the end of the day create a JPanel that converts decimal<->ascii<->hex<->octal<->binary.
Originally wrote this for
Hapsby even though
it only needed decimal<->hex conversions.
LogFile.java (6.46 kb) As the name implies this creates a simple log
file. I mean a very, very simple log file. It really just opens a file
and appends lines. I suppose this could be obsolete since JDK 1.4+ has a
Logging API. However, much like the Properties class discussed above it
is mildly inconvenient to use. First wrote this for
Hapsby,
but it's used in
Jail too.
SplashScreen.java (6.84 kb) This is a fairly lightweight splash
screen. Like
LaunchBrowser,
I looked at articles and discussion forums to figure out how to do this.
The resulting code was all original work though. I first wrote this for
Hapsby,
but it's used in
Jail too.
ZipCompressor.java/ZipDecompressor.java (7.84 kb) Nothing too
advanced here. These are just two classes to make zipping and unzipping
files easier. Wrote these for
Hapsby as part
of the autobackup feature.
FortuneCookie.java (8.54 kb) I think some versions of Linux have a
feature like this. All it does is return a random fortune from a list.
That's all. I never found a nice way to incorporate it into any of my
projects.
ImageCropDemo.java (6.54 kb) A while ago I was contacted by someone
who was working on a game in Java. The game map was going to be one
giant gif and they wanted to be able to crop and scroll it to fit the
visible field. For some reason they asked if I knew how to crop images
in Java. I didn't, but figured it out in about an hour and sent this
class back to them. Don't know what
ever happened with the game though..
ShowImageDialog
(13.2 kb) This is a JavaScript to pop-up an image in a dialog and
size the dialog to fit the image. Click on the image to the left for an
example.
Currently only works correctly with Internet Explorer, the resize
doesn't work in some versions of Netscape or Mozilla.
DirectoryEntryDemo
(26.7 kb) This program demonstrates how to perform some simple, yet
common, operations using the System.DirectoryServices.DirectoryEntry
class. It loads a list of all available domains into a combo box,
selecting a domain loads a list of all users in that domain, and
selecting a user displays all their available properties.
Note: if you try to use this code in an ASP.NET application it will fail because you can not anonymously query Active Directory for user information. You'll have to use impersonation and run the code under the identity of the user visiting the site. There's a guide to doing so at:
http://support.microsoft.com/default.aspx?scid=KB;en-us;q306158
Everything on this site is free. I'll never use pop-ups or randomly
generated ads to support it. If you've found something here to be
especially helpful or entertaining please consider making a small
donation. This can be done through a secure PayPal transaction or by
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Thanks for visiting my little web page!
;)
