cmd
java -version
java version “1.8.0_171”
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) Client VM (build 25.171-b11, mixed mode)
Make some code
Compile (if some build error, re open cmd, if syntax error…well fix it)
javac Slave.java
Run it
java Worker “1213.1213”
System bat
Change dir to correct
-cp classpath
. this