How to Uninstall Java on Ubuntu – Java Programming Tutorials

There are 2 options depending on the type of JDK (OpenJDK or Oracle JDK) how to uninstall Java in Ubuntu.

OracleJDK

Check installed Oracle JDK packages:

grep oracle-java

Remove Java 8:

sudo apt-get remove --purge oracle-java8-installer

Removing Java 9:

sudo apt-get remove --purge oracle-java9-installer

First of all, take a look at installed OpenJDK packages:

sudo dpkg --list | grep -i jdk

Depending on installed packages you should edit a list to remove:

sudo apt-get remove --purge icedtea-* openjdk-*

Check again for installed packages, the list should be empty:

sudo dpkg --list | grep -i jdk

Java should be completely uninstalled.