configure the application.properties file to set the needed properties:
mvn clean install
java -jar target/hetic-calculator-1.0-SNAPSHOT.jar <number1> <operator> <number2>java Calculator <number1> <operator> <number2>or
java Calculator <folderPath>With the .op file containing the operations in the following format:
<number1> <operator> <number2>
<number1> <operator> <number2>
...