Download and Install OpenJDK 21 on Windows

Steps to setup Java Development Kit (JDK) with OpenJDK 21 on Windows operating system. JDK is required to create, develop, build and run Java applications.
In this video, you will see:
- What OpenJDK is about
- What JDK 21 is about
- Download binary distribution of OpenJDK 21 for Windows OS
- Install OpenJDK 21 on Windows (including setting up environment variables)

[@MiguelRatesSoriano]

thank you so much. first tutorial of you that i saw i was so lost 'cause of my noobie brain. But with this video i got to manage it perfectly! thannks for taking the time to show every detail

[@CodeJava]

you're welcome. Glad it helped.

[@meryemobs8559]

thank you , that MOVE UP that you did (in PATH ) saved me a lot of Time , thank you

[@CodeJava]

glad it helped.

[@CMarco]

Thank You so much, most of the tutorial just say to use winget and install de MS binaries. thanks a lot to show how to actually install the official OpenJDK

[@CodeJava]

Glad it helped!

[@svalyavasvalyava9867]

wonderful explanation and tutorial, thank you 😊

[@CodeJava]

Glad it was helpful!

[@braianvargas2458]

Absolutely successful!

[@CodeJava]

glad it helped.

[@hanieh.k]

Thank you a lot🙏🙏🙏🙏🙏

[@CodeJava]

Always welcome

[@juanfelipetorressalazar1334]

Works. Thank you!

[@CodeJava]

Glad it helped.

[@priagungsatrian]

thanks mate

[@CodeJava]

You're welcome!

[@adrianczech981]

Is there a possibility in Open JDK to add website to the exception list, like in Java SE? This is necessary to run Java enviroment in some specific sites.

[@CodeJava]

Hmm, I don't really understand what you mean. Can you share that specific websites? Or you mean exception list in Windows Firewall?

[@collinbrown7751]

I can't seem to figure this out. I followed all the steps correctly, but my computer still does not recognize jdk 21. The only different things I did was uninstall java 8 and save my extracted file of jdk 21 to my hard drive instead of 'data' because I don't have that on my computer. Any advice?

[@CodeJava]

did you configure environment variables properly? the PATH variable should contain the entry %JAVA_HOME%\bin as the first entry.

[@nazerrina1080]

Thanks for the tutorial @CODE Java
but I couldn't do it because I already had JDK11 even though I tried to download JDK 21, all the steps were as in the video but I didn't succeed, when I checked in CMD JDK11 still came, I tried many times, unfortunately it came the same.
ultimately failed
😰

[@CodeJava]

did you open a new command prompt after updating environment variables? Also check the PATH variable to make sure the entry of JAVA_HOME comes first. For any changes, you need to open a new command prompt window.

[@nazerrina1080]

@@CodeJava yes i already did but come is only java 11 not java 21