To check which version of Java you're running, you'll need to use Windows 10's Command Prompt app. The Command Prompt can seem intimidating at first, but if you know what to type, you'll be fine ...

To install Java 17, open a terminal window and issue this command: sudo apt-get install openjdk-17-jdk openjdk-17-jre -y After that installation completes, let’s install Java 18 with this command: ...