install java ubuntu

C++
sudo apt-get install openjdk-8-jdksudo apt install default-jdk
sudo apt install default-jre # installs java
sudo apt install default-jdk # installs javacsudo apt install default-jre
sudo apt-get update
sudo apt-get install oracle-java11-installer-localOutputCommand 'java' not found, but can be installed with:

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

Also in C++: