install java in ubuntu 20.04
# Java in ubuntu # first check if java is already installed or not using java -version # install openjdk (Java Development Kit) sudo apt install default-jdk # it will ask for confirmation...around 480 MB will be downloaded # this will install both the latest jdk and jre of openjdk distribution # check for java java -version #check for javac javac -version # If you only want to install jre and not jdk, just run sudo apt install default-jre
