ubuntu-open-jdk.md

1. sudo apt update
2. java -version : Shows you what to install

   ~/development$ java -version
   
   Command 'java' not found, but can be installed with:
   
   sudo apt install default-jre            
   sudo apt install openjdk-11-jre-headless
   sudo apt install openjdk-8-jre-headless
   

3. sudo apt install default-jre
4. sudo apt install default-jdk
5. Source : Digital Ocean Tutorial

This installation caused issued for me as listed here