No Autopopup code completion option there
Answered
Hi,
I found my IDE didn't have the Autopopup code completion function. So I checked your website and found the following link:
https://www.jetbrains.com/help/idea/auto-completing-code.html
It says:
"
- From the main menu select File | Settings (or press Ctrl+Alt+S).
- On the left choose Editor | General | Code Completion, and select the Autopopup code completion option.
"
But I am not seeing any Autopopup code completion option and here's my screenshot:

Could someone take a look? Thanks.
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What file type do you edit? Please provide the screenshot of the editor where you expect to get the code completion. A screencast may also help.
Hi Serge,
Here's my version info:
For example, when I type System.out. I think it should show all the other methods there, but none.
Please attach a screenshot of the full IDE window with the editor where you don't get the code completion after "System.".
Here it is:
It looks like you don't have JDK configured properly for the project, please refer to https://www.jetbrains.com/help/idea/creating-running-and-packaging-your-first-java-application.html.
Hi Serge, I think I have chosen JDK 1.8:
You can't use JetBrains bundled runtime as the JDK for your projects, you need to install Oracle JDK, see https://www.jetbrains.com/help/idea/configuring-projects.html#configure-jdk.
Hi Serge,
I see. I have installed Java before, here's the version, I followed you instruction and input the directory: C:\Program Files\Java\jre1.8.0_161 But it's still not working.
Select JDK directory, not JRE.
Thanks Serge! Issue resolved.