So I was just working on a Java project, and then these annotations popped up as I was typing. I found them to be really really helpful, but I have no idea what this feature is.
Could someone point me to the settings for this feature so I know when I can use it again in the future?

they are called Parameters hint. can disable them by going to
if you go there you can configure it to match your expectations.
link: https://www.jetbrains.com/idea/whatsnew/#v2016-3-user-interface