Please modify the folder path as per your system. If you do not see any error, it means the system variable is created successfully. ::SetEnvironmentVariable("JAVA_HOME", "C:\Program Files\Java\jdk-17.0.2", "Machine") Now type the following command and press Enter:.To do this, right click on Windows PowerShell and select “ Run as Administrator” option. Launch an elevated session of Windows PowerShell console.The benefit of using this method is that there are less chances of errors. If the environment variable you created using GUI does not work, you could use the commands mentioned in this section to setup the environment variables using PowerShell commands. You could also try to setup environment variables using PowerShell commands as shown in the next section.Ĭonfiguring Environment Variables for OpenJDK using PowerShell If you see this error, watch this video to learn how to setup environment variables in Windows. If you see an error that says ‘java’ is not recognized as an internal or external command, operable program or batch file, there is some problem with the environment variables you created.If you’ve done everything correct so far, you will see the Java version as shown in the screenshot below:.To confirm if Java environment is setup properly, open a command prompt (cmd.exe) and type java -version command and press Enter. Finally, click OK twice to close advanced system properties.Click on New button and type “ %JAVA_HOME%\bin” without quotes as shown in screenshot and click OK.Now select the Path variable under User variables section and double click to edit it. The JAVA_HOME system variable should now be available as shown in the following screenshot:.See the following screenshot for reference. Now under Variable name, type “ JAVA_HOME” without quotes and under Variable value, paste the path of folder where you extracted the OpenJDK archive (“ C:\Program Files\Java\jdk-17.0.2” in our example) and click OK button. Under System variables section, click on New button.This will open advanced system properties. Open Run dialog (WinLogoKey + R) and then type “ sysdm.cpl ,3” or “ SystemPropertiesAdvanced” without quotes and press Enter.To setup the environment variables for OpenJDK, follow these steps: Configuring Environment Variables for OpenJDK Next step is to setup the environment variables in Windows so that OpenJDK can be accessed by users and programs the same way as that of Oracle JDK. The destination folder will be automatically created if it doesn’t exist. I will extract mine into “ C:\Program Files\Java” using the following PowerShell command: Expand-Archive -Path "$env:USERPROFILE\downloads\openjdk-17.0.2_windows-圆4_bin.zip" -DestinationPath "C:\Program Files\Java" -ForceĪssuming the OpenJDK archive is located in your downloads folder, this command extracts it to the “ C:\Program Files\Java” folder. You just need to extract the archive into a folder of your choice. Once you download the compressed archive, the installation is fairly simple. You can download the compressed archive of a particular build for your operating system as shown in the following screenshot: The OpenJDK is available for download at. So lets discuss how to install and configure OpenJDK in Windows. OpenJDK is available as compressed archives which require manual configuration in Windows. The executable installer packages of Oracle JDK made it incredibly easy for users to install and setup JDK without hassle – particularly in Windows. The main problem with OpenJDK is that it does not provide the installer packages like Oracle JDK. In this article, I will discuss how you can install and configure OpenJDK – a completely free and open-source implementation of the Java SE – in Windows. I am neither a lawyer nor a licensing expert so I will not discuss the licensing and technical details here. However, No-Fee Terms and Conditions (NFTC) still allows the users to use Oracle JDK free of cost (even in production environment) as long as the end product is not distributed for a fee. The use of Oracle JDK in production environment now needs a commercial license to be purchased. While this license change does not impact people using Oracle JDK for personal, development, and training purpose, there are a lot of people who started looking for an alternative option. The Oracle JDK license has been changed since the release of Java Standard Edition (JDK 8 and above) on April 16, 2019.
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