Creating and Saving Temporary Run/Debug Configurations
Sometimes you might need to run or debug a certain class with the main() method without creating a dedicated run configuration. In this case, you can use the temporary run configuration provided by IntelliJ IDEA.
A temporary configuration is created every time you run test classes or methods from the context menu or using the gutter icons 
or 
. The new configuration appears greyed out in the run/debug Configuration selector when the run or debug session is over. 
Temporary run/debug configuration is added to the list of available configurations and works same way as the permanent run/debug configuration. You can change its settings using the Run/Debug Configuration dialog and optionally save it as permanent.
Temporary configurations cannot be viewed and edited in XCode. You can save a temporary configuration to make it available among other XCode schemes.
Create a temporary run/debug configuration
Select the desired class with the
main()method in the Project view or open it in the editor.-
Do one of the following:
Right-click code in the editor and select or .
Press Ctrl+Shift+F10.
IntelliJ IDEA creates a temporary configuration, which appears in the Run/Debug Configuration selector when the run or debug session is over.
Save a temporary run/debug configuration
-
In the Run/Debug Configuration selector, choose .
-
In the Edit Configurations dialog, select the temporary configuration in the list, and click
. From the context menu of the editor or Project tool window, choose .