colin  j.  arpe

bitCalc is a simple calculator application that performs the four basic arithmetic operations on whole or floating-point numbers. The program in coded in Java using the NetBeans IDE. The floating-point equation class was coded using test-driven development with JUnit4.

For each equation, the program creates an object containing the two operands, the result, and methods for the four operations. Within the Equation classes (integer and float), there are no number variables or native mathematical operations (exception: array indices and for-loop incrementation). Instead, each of the numbers is stored in an array of 32 boolean variables representing the value as a 32-bit binary number. The calculations are then performed using the logic gates AND, OR, XOR and NOT.

The .jar file can be downloaded by clicking on the image above; it requires JRE to run. For help with this, click here.

The code for the Equation class, which contains the functions for the integer bit operations, can be viewed here. The JUnit tests used in developing the FloatEquation class can be viewed here.

lightsOut! is a puzzle game in which the object is to turn all of the red squares "off" simply by clicking them. However, clicking each square will reverse the state, from on to off or vice versa, of every adjacent square. It's really hard. I find it incredibly frustrating, and I wrote it.

The .jar file can be downloaded by clicking on the image above; it requires JRE to run. For help with this, click here.

The code for the frame class, which includes classes for the contained panels and code to launch an external web browser, can be viewed here.

codeBreaker is an instantiation of the classic board game Mastermind. The user can solve the puzzle created by the game, or create a puzzle and let the algorithm solve it.

The site runs entirely on the front end, with the algorithm's logic written in JavaScript. The page design is coded in HTML and CSS without a framework, whereas much of the interaction utilises jQuery.

The source code for the page can be viewed here.

hangMovie is a puzzle game in which the player chooses letters to try guess a movie title. Each puzzle is generated dynamically when the player enters the name of an actor and a film from the actor's resumé is randomly selected.

The code logic is written in JavaScript, and the movies are returned via an API call to NetflixRoulette.

The source code for the page can be viewed here.