To check the version of Java installed on your Mac, you can use the java -version command in a terminal.
To open a terminal on your Mac, go to the Applications folder, then the Utilities folder, and double-click on Terminal. Alternatively, you can use the Spotlight search feature to find the Terminal app.
Once the terminal is open, type java -version and press Enter. This will print the version of Java that is currently being used by the system.
If you have multiple versions of Java installed on your Mac, you can use the /usr/libexec/java_home command to list all of the installed versions. For example:
/usr/libexec/java_home -V
This will print a list of all of the installed Java versions, along with their corresponding locations.