Openjdk Download - OpenJDK 11 OpenJDK 8 Download and Install for Windows.

OpenJDK Developers Guide


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.


OpenJDK is the open source implementation of the Java Platform Standard Edition and is free to use with General Public License Version 2 ; GPLv2. OpenJDK 7 is the reference implementation of the Java SE 7 Specification. For more details you can refer the official Java SE 7 specification from Java Community Process here.

OpenJDK 7 was released on 28th July 2011,Since decision to Open Source JDK came late in the life cycle of the development of JDK 6, JDK 7 was first released as open source. Since Java SE 6 was needed as well, to maintain backword compatibility OpenJDK 6 was released by removing the OpenJDK 7 features inappropriate for a Java SE 6 specification.

Community OpenJDK source code can be downloaded from Mercurial repository

OpenJDK developer's guide and openjdk documentation is available at the official OpenJDK website. https://openjdk.java.net.



Why OpenJDK ? Why not Oracle Java JDK


Oracle Java is not free anymore!. We need to buy subscription for its usage. Typically for Java SE Desktop Subscription you might have to pay minimum 2.5$ per named user profile per month. And minimum of 25$ per processor (volume 1-99).


For detailed price list please visit oracle here


On the other hand, OpenJDK is free for all and you don't have to pay single penny!. If you don't want you buy Oracle Subscription and still want to use Java for free in all your Production Systems then OpenJDK is the right choice for you.





Differences between Oracle JDK and OpenJDK



Oracle JDK
  • Both OpenJDK and Oracle JDK are created, maintained and Supported by Oracle

  • Oracle JDK is based on OpenJDK which was donated to public by Sun Microystems.

  • Oracle JDK was licensed under Oracle Binary Code License Agreement.

  • Oracle JDK require a commercial license. And provides Long Term Support

OpenJDK
  • OpenJDK is developed, maintained and Supported by Oracle and OpenJDK community.

  • Open JDKinitially was donated to public by Sun Microystems.

  • OpenJDK is licensed under GNU General Public License (GNU GPL).

  • OpenJDK doesn't require a commercial license. And provides Short Term Support



Where to Download OpenJDK ?


We can download OpenJDK community version at the below site. https://jdk.java.net/

You can also download OpenJDK from AdoptOpenJDK which provides an open and reproducible build and test system for OpenJDK source across multiple platforms. AdoptOpenJDK provides OpenJDK binaries for the Java ecosystem.


To install AdoptOpenJDK on windows, here is a quick guide to help you get started AdoptOpenJDK Installation on Windows


Finally the Red hat OpenJDK, The Red OpenJDK is a free and open source implementation of the Java Platform, Standard Edition (Java SE) by Red Hat.

You can download the latest version of Red Hat OpenJDK from Red Hat Official site Download Red Hat OpenJDK . To install Red Hat OpenJDK on windows, here is a quick guide to help you get started Red Hat OpenJDK Installation for Windows



OpenJDK Installation for Windows


How to install openjdk on windows ?. If you are already familiar with Java Development Kit (JKD) installation, please Go to https://jdk.java.net/ and get your copy of OpenJDK. If you are new to Java, here is quick guide to help you get started OpenJDK Installation for Windows



Red Hat OpenJDK Installation for Windows


The Red OpenJDK is a free and open source implementation of the Java Platform, Standard Edition (Java SE) by Red Hat.

You can download the latest version of Red Hat OpenJDK from Red Hat Official site Download Red Hat OpenJDK . To install Red Hat OpenJDK on windows, here is a quick guide to help you get started Red Hat OpenJDK Installation for Windows

OpenJDK vs Red Hat OpenJDK


OpenJDK (Open Java Development Kit) is an open source implementation of the Java Platform, Standard Edition (Java SE). Community project OpenJDK is currently sponsored and led by Oracle.



AdoptOpenJDK Installation for Windows

openjdk 8 Developers Guide

AdoptOpenJDK provides an open and reproducible build and test system for OpenJDK source across multiple platforms. AdoptOpenJDK provides OpenJDK binaries for the Java ecosystem.


To install AdoptOpenJDK on windows, here is a quick guide to help you get started AdoptOpenJDK Installation for Windows

Explore OpenJDK

OpenJDK features,Code Samples and More!.


Explore OpenJDK Features

OpenJDK features of all releases.


Explore OpenJDK Code Examples

OpenJDK Code Samples and More!.

Java Code Samples

Oracle / OpenJDK Java 8 code samples.


Java Install and Uninstall Quick Steps.

OpenJDK features,Code Samples and More!.

Uninstall Java

How to Uninstall Oracle / OpenJDK Java on Windows.

Install Java

How to Install Oracle / OpenJDK Java on Windows.


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