Install Oracle Java 8 / 9 in Ubuntu 16.04, Linux Mint 18

Quick tutorial for beginners how to easily install Oracle Java JDK8 or JDK9 in Ubuntu 16.04 or Linux Mint 18 via PPA.

Webupd8 Team is maintaining a PPA repository with installer scripts for the latest Java 8 and 9, that automatically downloads the Java archive from Oracle website and sets up everything for you.

1. Add the PPA.

Open terminal (Ctrl+Alt+T) and run the command:

sudo add-apt-repository ppa:webupd8team/java

Type in your password when it asks and hit Enter.

2. Update and install the installer script:

Run commands to update system package index and install Java installer script:

sudo apt update; sudo apt install oracle-java8-installer

You may replace oracle-java8-installer with oracle-java9-installer to install Java 9.

While the install process, you have to accept Java license to continue downloading & installing Java binaries.

3. Check the Java version

To check the Java version after installing the package, run command:

javac -version

4. Set Java environment variables

The PPA also contains a package to automatically set Java environment variables, just run command:

sudo apt install oracle-java8-set-default

For Java 9, install the package oracle-java9-set-default instead.