# install: https://www.cnblogs.com/zkwarrior/p/5068784.html
# tictoc: http://www.vonwei.com/post/omnettictoclearn.html
# tutorrials: https://docs.omnetpp.org/tutorials/tictoc/
# java https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html