This post explains how to install Java or check which version is running on your machine. Install on any OS, and learn about the JDK.

Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.

If you want to download Java 64-bit or 32-bit on your Windows 11 or Windows 10 computer then follow the method mentioned here.

If Java is not recognized as internal or external command, you need to make sure that the installation is not problematic and its path is recognized as system variables.