Intellij IDEA plus sign when String wrap

Question

I\'m using Intellij IDEA 10.5 Community. If I have a long String and want to split in in mulitple lines I press ENTER key in the middle of a String and get this:

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Answer 1

In case someone is using Android Studio:

Android Studio > Settings > Editor > Code Style > Java

Click on tab "Wrapping and Braces" and then find the "Binary expressions" group. There you have the checkbox "Operation sign on next line"