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.
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.
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
Intellij IDEA: view class methods in their real order - Stack Overflow
What is the IntelliJ equivalent from Eclipse, show file in the package explorer view - Stack Overflow
List of methods IntelliJ - Stack Overflow
Does IntelliJ have the equivalent of the Eclipse "method view"? - Stack Overflow
You can highlight a file you have open in the editor in a number of views using the Select In...menu that can be opened using ALT-F1 when the editor window has the cursor.
The most usual ones (Project/Packages) are found under the menu opened by ALT-F1 and then right arrow.
You can also double click the circle/cross button ontop of the Project view
it will show you the current active file in the project structure

You can open it by View->Tools windows->Structure

Alternatively you can press ALT+7 (Tested on Ubuntu).
ALT+7 (⌘7 on Mac) shall show up Structure which lists all the methods of current class open in editor.
You can get familiar with IntelliJ IDEA from this official tutorial
what you are looking for is Structure View. It can be found on the left side below the Package View vertical button.
It can also be found under the Window -> Tool Window menu item.
Windows it is the keyboard shortcut ALT 7.
macOS it is the keyboard shortcut CMD 7.
Linux it is the keyboard shortcut CTRL 7.
Or just tell IntelliJ to "Show Members" in Project View. You select it in the upper right by clicking on the gear icon.