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My Java Projects

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All Java programs on this homepage are developed and written by myself and most of them are free software.
Most of them are published under the terms of the GPL.
All Java programs need a Java Runtime Environment.


BigAl (GPL)
Calculate really BIG numbers with unlimited precision (platform independent application)
(since March 2001; last update: Jun 23, 2007)

Jacksum (GPL)
Checksum utility written entirely in Java (platform independent application) 
(since July 2002; last update: Jul 30, 2006)

Jarfix (freeware)
Fix the jar file association under Windows (a properitary .exe)
(since May 2002; last update: Oct 31, 2006)

NumericalChameleon (GPL)
It is really more than an unit converter (platform independent application)
(since Sep 2001;  last update: Feb 25, 2007)

Sugar (LGPL)
Small, but useful and universal java library, used by BigAl, NumericalChameleon and Jacksum
(since May 2002)

Java Software which is not available anymore, because the development has stopped:

Methusalem (GPL)
Java applet which calculates your age, for webpages
(191 SLOCs, since April 1998; last update: Aug 4, 2002)

Java Software I have written for companies (and for money); software is not available for download of course:

Isis & Osiris
This application and thesis have been submitted for my diploma. Isis & Osiris are Java applications to analyze multiple network protocols ("Entwicklung neuer graphischer und funktionaler Möglichkeiten eines MultiProtocolAnalyzers unter Verwendung von Java und Swing")
(30699 SLOCs; 1.09 MB java sourcecode; December 1999)

Tumga
"Tages- Und MonatsGenaue Abrechnung", an expense-calculator.
(1876 SLOCs;  59.2 KB java sourcecode; October 1999)

Tirex
The "TIme REport for netwokX". It's a client/server software for online reporting working hours over the network.
(13618 SLOCs;  407 KB java sourcecode; September 1998)

I'm a software developer since 1990. Before Java I have written software in Basic (c64, before 1990 to be exact ;-), Assembler (IBM 3270 and Motorola 68k), COBOL (ANS 85), Pascal, C, C++, sh/csh/ksh/bash and Perl. Today, my favorite computer languages are Perl and Java. My favorite platforms are Unix and GNU/Linux.


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Copyright © 2000-2010 Dipl.-Inf. (FH) Johann N. Löfflmann mail icon jonelo@jonelo.de,
last update of this page: 07-Jan-2009
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