uru-web-2-complex-number-calculator

Complex number calculator built with Java servlets for the Web 2 course at Universidad Rafael Urdaneta. It offers a JSON API and three JSP pages (sign in, sign up, dashboard).

Note: This repository is archived and read-only, and it is coursework.

Features

• Calculator API — add, subtract, multiply and divide, for numbers in rectangular form (/api/rectangular/...) and polar form (/api/polar/...). The classes are RectangularComplexNumber and PolarComplexNumber.
• Accounts — /api/sign-up, /api/sign-in and /api/sign-out. Users are kept in an in-memory HashMap, so they are lost when the server restarts.
• Pages — /sign-up, /sign-in and /dashboard, served from src/main/webapp/ with their own CSS and JavaScript.

Build

Maven project (complex-number-calculator, version 1.0-SNAPSHOT, packaged as a WAR) using Jakarta Servlet 5.0 and org.json, compiled for Java 8.

mvn clean install

Deploy the resulting WAR from target/ to a Jakarta EE 9 servlet container such as Tomcat 10.

Known issue

ApiPolarMultiplyServlet and ApiPolarAddServlet both declare the URL pattern /api/polar/add. Most containers refuse to deploy two servlets with the same mapping, so the multiply servlet probably needs /api/polar/multiply.

License

GNU General Public License v3.0.