Run From Keyboard
Use the keyboard to select and run a run configuration.
Run one of your configurations, without the keyboard.
Need to run a recent run configuration, and don't want to use the mouse? Use this action and its keybinding.
These tips have a recurring theme: use your keyboard, not your mouse. Running your code should be the same way.
Use the Run action (Shift-Alt-F10 Win/Linux, Ctrl-Alt-R macOS) to get
a popup listing your defined run configurations, both permanent and temporary.
You can then use the arrow keys or speed-type to highlight the one you want to
run, pressing Enter to select and execute it.
"Select" is used intentionally: one you select this run configuration, it is
the active one, and the simpler Run <your configuration> action
(Shift-Alt-F10 Win/Linux, Ctrl-R macOS) will immediately run it.
You can do more from the keyboard than just run it. Each entry in the popup has a submenu which you can access by pressing the right arrow. This lets you choose how you want to run it (Run, Debug, Coverage, Profile, Run under the concurrency diagram, etc.) as well as edit that configuration or delete it.
Debugging is popular option, so it gets its own popup sequence. Use the
Debug action (F9 Win/Linux, Alt-Cmd-R macOS) to give the popup, but leading
directly to debugging (to skip the submenu step.) Once selected, you can re-run
that debug configuration with the Debug <your configuration> action
(Shift-F9 Win/Linux, Ctrl-D macOS.)
Again, for both the run popup and debug popup, don't forget to speed type to select, instead of the arrow keys.
There are, obviously, many other ways to run your code (menus, right click, gutter icons, tool window buttons.) For keyboard-centric folks, give this a try.