github.com/farhanMRahman/CalcVerter

This is a simple scientific calculator and unit converter. I've implemented it using Java and Swing library.

• One main panel in the frame; main panel has two sub-panels; one for the calculator and one for the converter


• Used BorderLayout for the main panel, GridLayout for the calculator panel, GridBagLayout for the converter panel and FlowLayout for the toolbar panel


• Calculator has some basic functionalities like addition, division, square root, log, sine, arc cosine etc.


• Converter panel converts from cm to inches, gallon to liter, mile to km etc. (also the vice versa)


• KeyListener listens to KeyEvents and responds accordingly; so user can use the calculator from the keyboard


• User can also press the buttons to use the calculator

Download CalcVerter

You must have JRE installed in your computer;
to run this, unzip the file and click on the CalcVerter icon

Launcher

main function

DisplayWindow

holds the JFrame, the container and methods for displaying the frame

MainPanel

main JPanel, holds and sets the other two panels

Toolbar

top toolbar for changing Calculator mode to Converter mode and vice versa

Calculator

calculator panel, responds to ActionEvents, does all the mathematical works

CalcText

JTextArea of the Calculator panel for user input, communicates with Calculator for calculations

Converter

converter panel, responds to ActionEvents, does all the unit conversions

KeyEventsHandler

KeyListener manager, responds to the JFrame, handles all KeyEvents