If you want to download and install Java JDK 18 on Windows 11/10 computer, you will also have to set up a Path in Environment Variable.

All software fully updated. On Bootcamp is Windows 10, 64bit version, fully updated as well. - I need to install Java on this Windows partition, but fail to do so: ...

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.