[TBD]Useful Java help

Ubuntu FAQ

Uninstall OpenJDK

Use sudo apt remove --purge "^openjdk.*"

Ref: https://askubuntu.com/questions/778729/fouled-up-my-openjdk-8-jre

Install java runtime in the ubuntu

apt-get install default-jre

installing default-jee

#apt-get install default-jre

#java -version

openjdk version "1.8.0_121"

OpenJDK Runtime Environment (build 1.8.0_121-8u121-b13-0ubuntu1.16.04.2-b13)

OpenJDK 64-Bit Server VM (build 25.121-b13, mixed mode)

Ref: https://wiki.debian.org/Java/