QALecture2 cd QALecture2 mvn clean mvn compile mvn exec:java -Dexec.mainClass="QAClass.Main" java version "11" 2018-09-25 Java(TM) SE Runtime Environment 18.9 (build 11+28) Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11+28, mixed mode)