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.