Step 1 – Install Oracle Java 8 on Ubuntu
Run below commands to install Java 8 on Ubuntu:
sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer
Step 2 – Verify Java Inatallation
The apt repository also provides package oracle-java8-set-default to set Java 8 as your default Java version. This package will be installed along with Java installation. To make sure run below command.
sudo apt-get install oracle-java8-set-default
Verify installation:
$ java -version java version "1.8.0_191" Java(TM) SE Runtime Environment (build 1.8.0_191-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)
Step 3 – Setup JAVA_HOME and JRE_HOME Variable
Add following lines into /etc/environment file.
JAVA_HOME="/usr/lib/jvm/java-8-oracle" export JAVA_HOME JRE_HOME="/usr/lib/jvm/java-8-oracle/jre" export JRE_HOME PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
Reference:
1. https://tecadmin.net/install-oracle-java-8-ubuntu-via-ppa/