How to Install Java on Ubuntu – Java Programming Tutorials

Before installing Java on Ubuntu you need to choose between Open JDK and Oracle JDK.

The difference is described here.

Personally, I prefer Oracle JDK.

Oracle JDK

To install Java on Ubuntu you need to open Terminal (Alt + Ctrl + T) and type:

This will add a PPA repository that contains Java installer.

sudo add-apt-repository ppa:linuxuprising/java
sudo apt-get update

Then if you want to install Java 8 execute a command:

sudo apt-get install oracle-java8-installer

If you want to install Java 9 execute:

sudo apt-get install oracle-java9-installer

The same is for Java 11:

sudo apt-get install oracle-java11-installer

The same is for Java 14:

sudo apt-get install oracle-java14-installer

So Java is installed.

You can check Java version by typing:

java -version

Output:

java version "9.0.1"
Java(TM) SE Runtime Environment (build 9.0.1+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.1+11, mixed mode)

It’s not necessary to add any additional PPA repositories to install Open JDK on Ubuntu.

Just update a package index:

sudo apt-get update

and install a default-jdk package:

sudo apt-get install default-jdk

Check Java version by typing:

java -version