Installing OpenJDK 15 on Ubuntu

OpenJDK Developers Guide

In this guide, I’m going to show you how to download and install OpenJDK 15 on Ubuntu. - OpenJDK Community Version


What is OpenJDK


OpenJDK is the short form of Open Java Development Kit similar to Oracle's Java Development Kit used to develop Java Applications. Main difference between Oracle JDK and OpenJDK is that OpenJDK is free for all while Oracle Java Development Kit or Oracle JDK requires commercial license.


If you want to know more about OpenJDK, you can go through Open Java Development Kit Quick guide.


Step #1: Download


Go to https://download.java.net/openjdk/ and download the OpenJDK 15 tar distribution openjdk-14+36_linux-x64_bin.tar.gz. Here is the quick lik to download the OpenJDK 15 tar file openjdk-14+36_linux-x64_bin.tar.gz




Step #2: Install



To Install OpenJDK 15 Java Runtime - Enter the below command on Ubuntu command line.

$ sudo apt-get install openjdk-15-jre

The openjdk-15-jre package contains just the Java Runtime Environment. If you want to develop Java programs then please install the openjdk-15-jdk package.
To Install OpenJDK 15 Java Development Kit (JDK) - Enter the below command on Ubuntu command line.

$ sudo apt-get install openjdk-15-jdk



Step #3: Configure / SET JAVA_HOME Path


Once the above steps are successfully completed , we need to set the "JAVA_HOME" and "PATH" environment variables. Enter the following commands to set your environment variables. Make sure that your environment variables point to a valid installation of JDK on your Ubuntumachine.

export JAVA_HOME=/usr/lib/jvm/openjdk-15-jdk


Add the JAVA bin directory to the PATH variable

export PATH=$PATH:$JAVA_HOME/bin


This will append the java bin directory to the existing PATH variable. You can also check the PATH variable by entering the following command



Step #4: Verify


Once the OpenJDK 15 Download and installation is complete, we can verify the installed OpenJDK 15 version using below Command.



Go to Ubuntu prompt and type java -version
The above command prints the OpenJDK 15 version you installed.

Java -version


Verify the installed OpenJDK 15 version on windows

Congratulations !!! Now you have installed OpenJDK 15 Successfully.

Where to Download OpenJDK ?
- here are the OpenJDK versions you might be interested in!


OpenJDK 7
OpenJDK 8
OpenJDK 9
OpenJDK 10
OpenJDK 11
OpenJDK 12

If you are looking out for earlier OpenJDK versions, go to OpenJDK Archive



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