How to install Java 8 on Ubuntu code example

Example 1: install openjdk 8 sdk on ubuntu

sudo apt-get install openjdk-8-jdk

Example 2: how to install java 8 in ubuntu 16.04

sudo apt-get install openjdk-8-jdk

Example 3: instalar java ubuntu 18.04

sudo apt install default-jre

Example 4: how to install java 11 on ubuntu

sudo add-apt-repository ppa:linuxuprising/java

Example 5: instalar java ubuntu 18.04

OutputCommand 'java' not found, but can be installed with:

apt install default-jre            
apt install openjdk-11-jre-headless
apt install openjdk-8-jre-headless