move to this directory
$ gradlew build
This command build all project. Executable .jar file placed on build/libs
for run application move to build/libs and execute
$ java -jar Calculator-1.0.jar [PATH_TO_RES_DIR]
where [PATH_TO_RES_DIR] is path to directory with files:
Calculator.xsd - xsd schema for input file
result.xml - empty file for output result
sampleCorrect.xml - file with expression. Must be valid Calculator.xsd
e.g. you can use test files from src/main/resources. Finally command is
$ java -jar Calculator-1.0.jar ../../src/main/resources