Calculator

The application is a simple calculator that supports the following operations: Addition (+), Subtraction (-), Multiplication (*) and Division (/)
Calculator supports multi operand expressions and follows bodmas rule for operator precedence. In this case, division and multiplication has precedence over addition and subtraction.
The application reads input from a single line and prints the result back to console.
Decimal numbers are supported
Divisions are rounded with a scale of 2 decimals. Rounding method is ROUND_HALF_EVEN as it minimizes the cumulative error.
- ROUND_HALF_EVEN means: Round towards the "nearest neighbor" unless both neighbors are equidistant, in which case, round towards the even neighbor
In case of invalid expressions, the application will warn the user and wait for a new input

Usage

Build (Skip to `Run With Docker` if JDK 11 not exists)

It's a Java project that requires Jdk 11 or higher
Run the following script in root directory in order to build with Maven:

mvn clean install
Run the following if Maven is not installed

./mvnw clean install

or in Windows

./mvnw.cmd clean install

Run

Once the build is completed, you can run with one of the following commands:

java -jar target/calculator-1.0.jar

RUN WITH DOCKER

docker run -it alidemirsoy/calculator