IntelliJ shortcut to show a popup of methods in a class that can be searched

Solution 1:

Use Navigate (View in older versions) | File Structure Popup (Ctrl+F12 on Windows,
⌘+F12 on OS X). Start typing method/symbol name to either narrow down the list or highlight the desired element. Press Enter to navigate to the selected element.

Solution 2:

I prefer to use the Structure view. To open it, use the menu: View/Tools Window/Structure.
The hotkey on Windows is Alt+7, ⌘+7 on OS X

Solution 3:

Do Cmd+F12+Fn Key on mac in IntelliJ if clicking Cmd+F12 starts.

Solution 4:

On linux distributions (@least on Debian with plasma) the default shortcut is

Ctrl + 0

Solution 5:

If you are running on Linux (I tested in Ubuntu 10.04), the shortcut is Ctrl + F12 (same of Windows)