intellij shortcut - how to fold all javadocs + method implementations

Question

I can't find some IntelliJ IDEA shortcuts.

When I go to a class, I want to be able to see only the method signature without additional details.

Here is what I mean. Before:

And after:

Is there a shortcut for this?

Answer 1

Code Folding of a whole file is

Ctrl+Shift+Minus and Ctrl+Shift+Numpad_Plus

or in the menu

choose Code | Folding | Collapse All or Code | Folding | Expand All.

For more shortcuts for code folding:

Docs for Code Folding Shortcuts