Calculator - Reverse Polish Notation

The idea is to build a basic RPN calculator

Run it on console

NOTE: JRE 8 or above is required

java -jar .\target\rpn-1.0-SNAPSHOT.jar

Run it on browser (via CheerpJ)

https://paritosh149.github.io/rpn/

TODO items

• Add Readme.md
• Input and Output Streams should be configurable
• Prefer convention to configuration
• Test cases - all passed
• Full Code Coverage achieved in test cases
• Convert to Maven project
• Run and Test JAR independently
• Consider Reactive Streams to process input line
• Consider Asynchronous calls to operation functions
• Document the API and its dependencies
• Package CalculatorImpl in a separate package
• Convert operations to be available as jar plugins
• Tracing and Logging AOP
• Use Mockito to make each class independently testable
• IDE warnings removed or rectified
• CLI enablement and inclusion of documentation using --help flag
• Consider sharing behaviour instead of state
• Consider dev mode vs prod mode
• Create Docker image
• Added Github action to update demo site on every push to master