How to handle Multiple JDK in Ubuntu OS
How to handle multiple versions of Java In Linux
#Java11
#Java8
Path to Java 11
/usr/lib/jvm/java-11-openjdk-amd64/bin/java
Path to Java 8 will be
/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
$] sudo update-alternatives --config java
$] sudo update-alternatives --config javac
To install multiple versions
$] sudo apt install default-jdk (This will install Version 11)
$] sudo apt install openjdk-8-jdk (This will install version 8).