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Primes 1.4 (Downloads: 485)
calculates the prime numbers 1..N, tells you if N is prime etc. calculates the prime numbers 1..N, tells you if N is prime etc.
Prints tables of primes.
Computes the prime just below or above N.
It is useful in computing optimal Hashtable sizes.
Java source included....
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Rgrow 1.3 (Downloads: 216)
RGrow resizes fixed length records padding or chopping. RGrow resizes fixed length records e.g.
RGrow.exe MyFile.seq 500 600
will grow each record from 500 to 600 bytes by padding binary zeros.
Will also truncate records.
These are not the old and new sizes of the file, but of the fixed length records
in the file. If you increase the record size, each record will be padded
with nulls. The entire file will grow as a result.
This program may be freely copied and us...
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Biorhythms Calculator 2.7 (Downloads: 944)
Calculates and displays biorhythm graphs. Calculates and displays biorhythm graphs.
Enter your birthdate and this Applet and it will calculate
your biorhythms. It computes your 23-day physical, 28-day
emotional, 33-day intellectual and combined cycles. The
combined cycle is sometimes called the luck cycle. The
theory of biorhythms is when the cycles are positive/high
you will have high energy. When they are negative/low you
will have low energy. When they...
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HeapSort 1.7 (Downloads: 266)
HeapSort is an implementation of Williams and Floyd classic HeapSort. HeapSort is an implementation of Williams and Floyd's TopDown HeapSort.
HeapSort is a fast internal sort written in Java that uses a
sorting algorithm analogous to power struggles for higher
positions in a hierarchical bureaucracy. Source provided. It
is faster than QuickSort, but slower that RadixSort. It
sorts using a comparison routine you provide to compare two
elements to be sorted.
You can test it with:
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Boyer 1.5 (Downloads: 262)
Fast string search (indexOf) using the Boyer-Moore algorithm. Fast string search (indexOf) using the Boyer-Moore
algorithm. Incorporate this class into your own Java
programs to rapidly search strings.
use:
import com.mindprod.Boyer.Boyer;
...
Boyer b = new Boyer("dogcatwombat");
int where = b.indexOf("cat");
or
int where = Boyer.indexOf("dogcatwombat","cat");
Boyer-Moore is about twice as fast as String.indexOf wh...
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Echoserver 1.3 (Downloads: 242)
See what browsers and programs are sending to an HTTP Server. See what browsers and programs are sending to an HTTP Server.
Simple server just dumps whatever it receives on the console.
Echoserver is misnamed because it does not actually echo what it receives
back to the browser....
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FileFilters 2.7 (Downloads: 432)
Colllecton of Java FilenameFilters. FilenameFilters you can use in your own Java programs with
File.list( FilenameFilter f ). They can also be used
standalone as fancy dir commands.
They come with Java source and include:
AllDirectoriesFilter gets all directories
AllFilesFilter gets all files
ClamFilter simple wildcard
DirListFilter gets a list of directories
EndsWithFilter gets files whose names end with a...
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Holiday Calculatior 4.7 (Downloads: 767)
Calculate when 66 holidays occur in any given year. Calculates when various holidays occur in any given year BC or AD.
Designed to be cannibalised to include the calculation routines in your
own programs. You might use it to prepare paper calenders well in
advance or electronic calendars. You might also use the logic in computer
programs that compute payrolls, bus schedules, or club meetings. You
might use it in writing novels or researching historical events. It can
als...
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Spinner 1.1 (Downloads: 385)
DateSpinner, hex and formatted dollar input for Java JSpinner. Spinner consists of source for classes for a DateSpinner and to add hex and
formatted dollar input/output for Java JSpinner to your own
Java programs.
Spinner offers two NumberFormatter classes you can use with
a JSpinner. One is HexNumberFormatter which lets your
JSpinner range over hex values. The other is
DollarNumberFormatter which lets your JSpinner range over
dollar values. It works better than JSpinner.NumberEd...
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KeyPlayer 1.5 (Downloads: 388)
Java Keystroke and Mouse Event Tutor / Keyboard Diagnostic. Java Keystroke and Mouse Event Tutor / Keyboard Diagnostic
Application to let you experiment to learn how mouse and
keystroke events work. Output appears on the console.
Just click the mouse or hit keystrokes and watch what details
of the events generated.
To install, Extract the zip download with WinZip, available from
winzip.com (or similar unzip utility) into any
directory you please, often C:\ -- ticking off the (...
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FontSaver 1.4 (Downloads: 270)
FontSaver shares Font objects instead of creating new ones. FontSaver shares Font objects instead of creating new ones to cut
down on the RAM and time needed to create Font and Font peer objects.
Profiling often shows the creation of too many Font objects is the
cause of poor performance.
See the source code for how to incoporate it into your own programs.
It does nothing on its own....
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FileTransfer 2.5 (Downloads: 325)
Java classes to cop, upload and download files. Includes classes to let you copy, download and upload files from within a Java program. Also contains a command-line utility to download files.
Fully commented Java source is provided. It is now comes in four parts, MiniFileTransfer, FileTransfer and MaxiFileTransfer, Download depending on how much functionality you require. Now supports copying members in local jar files.
Command line use:
java -jar download.jar http : //x...
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QuickSort 1.6 (Downloads: 306)
QuickSort is an implementation of Tony Hoare's classic recursive Quicksort. QuickSort is an implementation of Tony Hoare's classic
QuickSort. QuickSort works by choosing a pivot point and
ensuring all elements below the pivot point are small all
above are big, (i.e. smaller than the pivot) Then it
recursively splites the upper and lower halves, repeating
the process. QuickSort is an internal sort written in Java.
Both RadixSort and HeapSort are quicker than QuickSort.
QuickSort can also take patholo...
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CanadianTax 4.2 (Downloads: 627)
Calculates Canadian sales taxes: GST HST and PST today or in the past. Calculates Canadian sales taxes: GST HST and PST today or as they were in the past.
Java Applet that can also be run as an application.
Requires Java version 1.5 or later.
Java source code and sample HTML included.
This version computes by adding GST HST and PST to a base
price. It als works in reverse given the
final price working backwards to get the taxes and base
price. In other words it will tell ...
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Mouse 1.4 (Downloads: 272)
In Java, allows you to find out where the mouse in on the screen In Java, allows you to find out where the mouse in on the
screen, even when it is not over one of your apps. This has
similar function to MouseInfo.getPointerInfo in Java 1.5+.
This class will work in any version of Java.
It uses JNI and a DLL, so it only works on Windows.
You must install the nativemouse.dll somewhere on the path.
Then your programs can find out the x and y position of the
mouse, [(0,0...
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CreditCard Validator 1.8 (Downloads: 410)
Verifies that credit card number is valid. The CreditCard Validator will help you tell:
1. if a credit card number is valid,
2. which credit card vendor handles that number.
It is a simple Applet to demonstrate the use of the ValidateCreditCard class.
It validates the prefix and the checkdigit. It does *not* contact the credit card company to ensure that number has actually been issued and that the account is in good standing.
It will also tell you which of ...
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TimeZones 1.9 (Downloads: 223)
Displays all the TimeZone on your machine supported by Java Displays all the TimeZoneon your machine supported by
Java, with their standard time and daylight saving time
offsets from GMT, along with the their ID (programmer) names
and display names. It also displays UTC time, local time, and
your default TimeZone and whether daylight savings is
currently in effect....
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