Command 'java' not found, but can be installed with:
sudo apt install openjdk-11-jre-headless # version 11.0.11+9-0ubuntu2~20.04, or
sudo apt install default-jre # version 2:1.11-72
sudo apt install openjdk-8-jre-headless # version 8u292-b10-0ubuntu1~20.04
sudo apt install openjdk-13-jre-headless # version 13.0.4+8-1~20.04
sudo apt install openjdk-14-jre-headless # version 14.0.2+12-1~20.04