How to Download & Install Java JDK 8 in Windows 10 (bit).

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How to switch Java versions in Windows (updated for JDK 16).How to Set Java Path in Windows and Linux? - GeeksforGeeks

 

Ask Question. Asked 10 months ago. Active 10 months ago. Viewed times. Improve this question. Stefan Zobel 2, 7 7 gold badges 24 24 silver badges 33 33 bronze badges. Shiiiwa Shiiiwa 11 1 1 bronze badge. Sure, i understood the Problem. Java compiler and JVM are two different things.

You shouldn't change a compiler, but rather change your local Java installation, as I already said in the already edited comment. Add a comment. Active Oldest Votes. It is very simple: either you tell IntelliJ to compile your classes to java 8 bytecode or you ensure that your windows command line is pointing to your java 11 setup For Intellij; you look into "Project Settings", then turn to "SDKs" under Platform Settings.

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Featured on Meta. Related Hot Network Questions. In this article, I'll show you how to install several Java versions simultaneously in Windows and how to switch between them on the command line with short commands.

Installing several Java versions at the same time is incredibly easy in Windows. You can download and run the installer for each version, which automatically installs the versions in separate directories. Starting with the following versions, you don't need to change the default installation directories:. Attention — you may use the following Oracle distributions only for private purposes and development:.

The following version is currently an early access build. You should use it only for testing purposes:. In most cases, the following two environment variables decide which Java version an application uses:. These variables should always point to the same Java installation to avoid unforeseen problems due to inconsistencies. Some programs, such as Eclipse, define the Java version in a separate configuration file for Eclipse, for example, this is the entry "-vm" in the eclipse.

The installers of the Java versions listed above already create various environment variables, which you need to clean up first see below. The fastest way to change the environment variables is to press the Windows key and type "env" — Windows then offers "Edit the system environment variables" as a search result:.

As the standard version, I currently use the latest release version, Java Therefore, you should make the following settings:. Attention: this only works for the default setting configured here.

Finally, we come to the possibility to change the Java version quickly and easily. Therefore I create a separate command for each Java version, called, for example, java16 , java15 , java14 , java The files are named, for example, java This script, admittedly kept very simple, inserts the bin directory of the Java version to be activated at the beginning of the Path variable, so that is where, for example, java.

The path variable becomes longer with each switching. However, since this is only the case for the currently opened command prompt, I don't think this is a problem. The following ZIP file contains all my scripts from Java 1. You can quickly test whether the scripts work in a command line. Attention: after adding the scripts directory to the Path variable, you have to open a new command line. At this point, the setup is complete. I hope this article was helpful for you, and I'd love to hear your comments.

If you liked the article, I'd be happy if you shared it via one of the following share icons. Use this 1-page PDF cheat sheet as a reference to quickly look up the seven most important time complexity classes with descriptions and examples.

Your email address will not be published. I did this and now I can use command prompts to switch between versions as verified with "java -version" BUT I still cannot get my browser based interface to function correctly on the version 6. Does this method not work for browser based applications? Try creating files in some other directory say D drive and then move those files to java folder. You just need to remember that after switching java version with script and closing terminal, next terminal will open with java default version, not the one from last script run.

Really Appreciated for this post But it is only working in the command prompt. I am using gitbash here it is not working. Sven, there is a side affect in this script. As an example, I ran java8. Hi Kolton, yes I know, I couldn't find an easy way to fix this.

But the changes are not permanent, they only apply to the current prompt. Therefore I think it is OK. Thanks for the correction! You are absolutely right. I've changed it in the screenshots and text. Hello everyone. First of all thanks for the script. In my case the change of jdk worked but each time a new terminal was launched the default jdk came back