Ubuntu 16.04. I was trying to run pycharm, and realized that I must have corrupted my jre at some point. Even after doing:
sudo apt purge openjdk-8-jre
java -version gives me:
nick@imipramine:~$ java -version openjdk version "9-internal" OpenJDK Runtime Environment (build 9-internal+0-2016-04-14-195246.buildd.src) OpenJDK 64-Bit Server VM (build 9-internal+0-2016-04-14-195246.buildd.src, mixed mode)
How can I completely remove all Java jres and jdks from my system before re-installing? Or am I missing something super basic?
BTW, I tried:
apt purge openjdk-9-internal apt purge openjdk-9-jre openjdk-9-jdk
Some files were removed, but
java -version still reports that openjdk is installed!