About Question enthuware.ocpjp.i.v11.2.3036 :

[FlatPanda]

I'd argue that "install" is pretty broadly interpreted here. You don't need to "install" a JDK (at least anymore), you just have to download (and unzip) it. Your development environment is set up already, you just don't have your PATH, etc. adjusted for convenience.

You will, however, need a JDK and a JRE for running Java programs, although there is no official JRE release as of 9 (because you are supposed to build your own for the app itself), one can still download "JRE" bundles. The JDK itself can be interpreted as the superset of all possible JREs, essentially.

[admin]

That just means install includes "downloading and extracting". That has always been the case with linux. It will still be called installation.