How to view JDK external documentation in IntelliJ IDEA?

Question

The shortcut for this action is Shift+F1 but it is always grayed out even I have pointed JDK documentation path to the docs folder (the docs folder

Answer 1

Java 10 Documentation path

Got to File -> Project Structure Choose External URL

Below Link works Fine... THe default one does'nt work

https://docs.oracle.com/javase/10/docs/api/