install java 8 in ubuntu 18.04 code example
Example 1: install openjdk 8 sdk on ubuntu
sudo apt-get install openjdk-8-jdkExample 2: how to install java 8 in ubuntu 16.04
sudo apt-get install openjdk-8-jdksudo apt-get install openjdk-8-jdksudo apt-get install openjdk-8-jdk