Step-by-step – OpenJDK 16 Installation in Ubuntu 20.04

Managing

4. 4. Managing Java Versions

   So now to Manage Multiple Java on System
   Use the update-alternatives as:

   sudo update-alternatives --config java

   If more than one then choose the wanted Release from list:

   

   And in case of a JDK Setup you may also switch the Java Compiler with:

   sudo update-alternatives --config javac

Java IDEs Installation on Linux

Eclipse IDE: Installing Eclipse IDE for Java on Linux.

Netbeans IDE: Installing NetBeans IDE for Java on Linux.

IntelliJ IDEA: Installing IntelliJ IDEA for Java on Linux.

So Now I’m truly Happy if My Guide could Help you to Quick-Start with OpenJDK 16 on Ubuntu 20.04 Focal!