How to enable "remove unused imports"

Preferences->Editor->Auto Import->Optimize Imports on the Fly will automatically remove unuxed imports.

thx that's what I was looking for

On Fri, 23 Sep 2011 19:42:34 MSD, Stephen Boesch
<no_reply@jetbrains.com> wrote, quoted or indirectly quoted someone
who said :

>I don't see it under Settings | Code | Imports.

I prefer to it manually, as part of reformat code.

If it tidies code which in a chaotic state, e.g. you have just pasted
in a mess of code from elsewhere, you often find that it tosses out
all kinds of GOOD imports.  You then have to tediously recreate them.

I don't tidy until I have a clean compile.
--
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It should not be considered an error when the user starts something
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For anyone looking for this ten years later, the option has moved slightly to:

Preferences->Editor->General->Auto Import->Optimize Imports on the Fly

Thanks Thomas Kelley, I've enabled the optimize imports but turns out I also have to enable it on General

Have been moved again:

https://www.jetbrains.com/help/idea/creating-and-optimizing-imports.html#d3048151

Is there any way to just remove the unused imports instead of completely moving them around? It is a nightmare when people use different IDEs that "optimize" their imports in the way they feel like it is a good idea. I've seen commits that are literally just imports being moved around by the IDE or the guy who uses Eclipse removing the `.*` and the guy who uses IntelliJ bringing them back and then conflicts happen on these imports

Guilherme Taffarel Bergamin

You can remove all of the rules specified in Settings/Preferences | Editor | Code Style | <language> | Imports. Then hitting Ctrl+Alt+O (on Windows) will just remove unused imports, no moving them around.

E.g. for Java, see https://www.jetbrains.com/help/idea/2022.2/code-style-java.html#imports_table