Copy Right@2019

Design by [Ruojun Meng](ruojunm@gmail), for Airwallex interviews
Free to Use, No Restriction `:)` 

How to build

Prerequisites

1. java 1.8+
2. Gradle 5.0

git clone 
gradle build fatJar

How to run

java -jar build/libs/RPNCalculator-all-1.0-release.jar

Then you will see:

Welcome to use RPN Calculator! Please input RPN sequences, containing whitespace separated lists of numbers and operators!
All the following operators are supported:  "+, -, *, /, sqrt, undo, clear" 

Any configuration?

Not supported yet

Design Points

For Dev, to overview the design points, please see Design Points

Test