Is this safe method to check if JAVA is not installed?

[Aqewwe]

https://www.cnet.com/how-to/how-to-check-for-and-disable-java-in-os-x/
The OS X Terminal (in the /Applications/Utilities/ folder) provided access to a number of commands that can be used for looking up system information, and by running the following one in the Terminal you should be able to see in the output what Java runtimes (if any) are installed on your computer:

sudo /usr/libexec/java_home


Is it safe to type

sudo /usr/libexec/java_home

into Terminal to see if there is Java? I want to make sure I don´t have it.

 

[Mr_Brightside_@]

Yes.

 

[chown33]

It doesn't need the 'sudo'. Or shouldn't. This should work:

/usr/libexec/java_home

You can copy that line and paste it into a Terminal window, rather than typing it manually and possibly making an error. Copy-paste should reduce chances of typos.