OpenJDK 11 Download and Installation on Debian

Quick guide to download and install OpenJDK 11 on Debian. - 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. For more details refer openjdk vs oracle jdk

Note: To uninstall previously installed OpenJDK please refer Uninstall OpenJDK Debian / Ubuntu

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

Step #1: Download

Go to https://jdk.java.net/archive/ and download the OpenJDK 11 Debian tar distribution openjdk-11+28_linux-x64_bin.tar.gz. Here is the quick lik to download the OpenJDK 11 Debian tar file openjdk-11+28_linux-x64_bin.tar.gz

Note :

If you want use OpenJDK provided by other vendors, AdoptOpenJDK / Redhat /Microsoft / zulu, Refer the below links :
Step #2: Install

To Install OpenJDK 11 Debian Java Runtime - Enter the below command on Debian command line.

$ sudo apt-get install openjdk-11-jre

The openjdk-11-jre package contains just the Java Runtime Environment. If you want to develop Java programs then please install the openjdk-11-jdk package.
To Install OpenJDK 11 Debian Java Development Kit (JDK) - Enter the below command on Debian command line.

$ sudo apt-get install openjdk-11-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 Debianmachine.

export JAVA_HOME=/usr/lib/jvm/openjdk-11-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 11 Debian Download and installation is complete, we can verify the installed OpenJDK 11 Debian version using below Command.

Go to Debian prompt and type java -version
The above command prints the OpenJDK 11 Debian version you installed.

Java -version
```
$ java -version
java version "11" 2020-**-**
Java(TM) SE Runtime Environment (build 11+36-1461)
Java HotSpot(TM) 64-Bit Server VM (build 11+36-1461, mixed mode, sharing)
```
Congratulations !!! Now you have installed OpenJDK 14 Successfully.

OpenJDK Known Issues

Note: Here is the list of OpenJDK known-issues OpenJDK Known Issues

Read Next:
OpenJDK On Windows

OpenJDK 11 Download and Installation on Debian

What is OpenJDK

Step #1: Download

Step #2: Install

Step #3: Configure / SET JAVA_HOME Path

Step #4: Verify

OpenJDK Known Issues

Read Next:

OpenJDK On Windows

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