Calculator

Documentation

·        Intent: Build a simple, stylized calculator using Java that can perform arithmetic, conversions, and store the user’s history. This program was meant to show basic understandings of Object Oriented coding.

·        Scope: My job for this calculator was to program the math, conversions, and history functions for this calculator.

·        Input: The user clicks a number to add it to the text field, clicks arithmetic symbols to define which function to perform, and conversion buttons to change a number into a metric like feet or liters. If the history is clicked, a drop-down list appears showing all the past expressions performed and their results.

·        Output: with the  exception of the “Del” and “C” button, all buttons and their symbols appear in the text field or an error exception will appear in the text field. Clicking the “ =” will give the result of two numbers and the conversion buttons instantly gives the correct conversion of the number. “Del” removes one character from the text field and “C” clears the entire text field and any numbers previously in use.

Guideline

·        Open both the “Main” and “Calculate” files in an IDE like Eclipse and copy and paste the code into two separate classes of the same names. Run the program until ready to quit.

      You can find my code here: http://pastebin.com/u/zhardyCode 

Illustration(s)