The Java Planet
===============
presents
JCalculator v1.1
================


This document contains following information.

1) Introduction
2) How to start the program?
3) How to use the program?
4) Further Help
5) Other products
6) About author
 

Introduction
============
JCalculator is a simple calculator made in java which 
can do basic mathematical operations coupled with a few 
advanced functions like backspace, square, square root, 
reciprocal, negation & memory functions. These advance 
functions' buttons also carry tooltips, which can be used 
for guidance. Note that this is not a scientific 
calculator, hence it does not follow BADMAS rule. The 
result will be displayed taking into account the immediate 
operator used. If 2 operators are pressed in succession, 
the first will stand invalid.

The program is in the form of executable jar file. You need 
to have Java Runtime Environment installed on your machine. 
If you don't have it, you can install it from java.sun.com.

The source code of the program is available. The source 
code is fully documented, with all major steps explained. 
It's worth taking a look at the source code.


 

How to start the program?
=========================
To start the program you simply need to simply unzip the 
file & double click on the file JCalculator.jar. If that 
doesn't help you can use the command line : 
              java -jar JCalculator.jar. 

If that too doesn't start the program you must be having 
some serious problem, you can mail me regarding the 
problem. Please verify that you have classpath defined 
properly. 

 


How to use the program?
=======================
Well you don't need to be taught to operate a calculator, 
isn't it? However keep one thing in mind, that our 
calculator works only with mouse. No keyboard support is 
available in the present version. If you can implement 
keyboard interface, please contact me. I would be grateful 
to include it here.

 


Still Facing Problems??
=======================
If you still have any sort of problem, you can seek my help 
by mailing me at thejavaplanet@yahoo.com

 


Other Products
==============
You can download a lots of java stuff from 
http://www.geocities.com/thejavaplanet which includes 
java applications like FileSplit, EncryptDecrypt, 
java games like JSnake, Need More Speed?, 
visual effects like rain, lake, explosion, tunnel and 
java applets like navigation, search, newsticker & firetext.

You can also download wallpapers, screensavers, windows 
utilities, windows games, fun programs & books from 
http://www.geocities.com/vishalmamania

 


About Author
============
The author Vishal Mamania is a final year student of 
Computer Science from Bombay University, India. 
You can contact me at thejavaplanet@yahoo.com or 
http://www.geocities.com/vishalmamania (my homepage in general) or 
http://www.geocities.com/thejavaplanet (java & only java) or 
http://www.geocities.com/screensaverpage (nature wallpapers & 
screensavers - make your own custom saver). 

Keep checking for newer versions at 
http://www.geocities.com/thejavaplanet/javaapps/calculator/index.html 
and for more programs. 

You can obtain the fully documented source code from 
http://www.geocities.com/thejavaplanet/javaapps/calculator/source.html. 
Please feel free to distribute this software to as many people you want. 
Bug reports and suggestions are very welcome.
