How do I completely remove Java from Linux?

RPM uninstall

1. Open Terminal Window.
2. Login as the super user.
3. Try to find jre package by typing: rpm -qa.
4. If RPM reports a package similar to jre- -fcs then Java is installed with RPM. …
5. To uninstall Java, type: rpm -e jre- -fcs.

How do I uninstall and reinstall Java on Ubuntu?

java-reinstall.sh

6.0_34/bin/pack200 remove the directory that is parent of bin, like this: sudo rm -rf /path/to/jre1. 6.0_34. #The next 2 commands must be type excatly perfectly to avoid permanently destroying your system. #To uninstall OpenJDK (if installed).