How to setup IntelliJ IDEA 14 to add “final” keyword where possible?

Question

Preferences – Code style issues

Since the 2018.3 version we can enable the checkbox:

Preferences/Settings > Editor > Inspections > Java > Code style issues > Local variable or parameter can be final

Then perform the reformat code action.

If the Code cleanup checkbox is enabled then IDEA will automatically add final where possible.

screenshot of IntelliJ 2021.1 > Preferences/Settings > Editor > Inspections > Java > Code style issues > Local variable or parameter can be final