Tuesday, February 20, 2018

How to Install JAVA 8 (JDK 8u161) on Ubuntu 16.04/14.04, LinuxMint 18/17

Use this tutorial for installing Oracle Java 8 on Ubuntu 17.10, 16.04, 14.04 and 12.04 LTS and LinuxMint 18, 17 systems using PPA.

Step 1 – Install JAVA 8

First of all, you need to add webupd8team Java PPA repository in your system. After that install, Oracle Java 8 using following a set of commands. The oracle-java8-installer package is not the actual Java package, it has a Java installation script which downloads Java archive from official java website and configures on your system.
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

Step 2 – Verify Installed Java Version

After successfully installing Oracle Java 8 using the above steps, Let’s verify the installed version using the following command.
java -version 

java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)

Step 3 – Setup Java Environment

Also, install Java configuration package. It seems like below package is already installed with latest operating systems during installation of JAVA packages. But you can still make sure by running below command.
sudo apt-get install oracle-java8-set-default
Now add the JAVA_HOME and JRE_HOME environment variable in /etc/environment configuration file using the following command.
cat >> /etc/environment <<EOL
JAVA_HOME=/usr/lib/jvm/java-8-oracle
JRE_HOME=/usr/lib/jvm/java-8-oracle/jre
EOL
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