How would be possible to assign a shortcut for word wrap like as sublime text do? i.e. if the code line is too long it should be automatically break to the next line. wikipedia.org.org/Word_wrap
I think "soft wrap" might be what you're after. It's read-only, i.e. does not change the characters in the file, it only wraps what you see on screen.
Intellij >= 14.1.4: As pointed out by looper in the comments, the options are under File > Settings > Editor > General - under the Virtual Space or Soft Wraps sub-group.
Intellij < 14.1.4: Look under File > Settings > Editor > Virtual Space. It doesn't have a shortcut by default, but you can assign one in the keymap.
AndroidStudio >= 1.4.1: the options are under File > Settings > Editor > General - under the Soft Wraps sub-group.
You can also right click the gutter (the vertical bar where line number is shown) and select "Use Soft wraps" - thanks to Bajal for comment.
[ctrl+alt+s] or File->settings to open settings dialogue.
Search for code style. its under project settings.
In code style, General check
wrap when typing reaches margin
That will give you wrapping of code.
In the Community Edition, Do Following:
File >> Settings >> Editor >> Code Style >> Java
Go to Wrapping And Braces Tab.
Set the "Right margin (columns)" option with number of columns you would like as line wrapping point. Set "Wrap on typing" to YES.
Don't forget to apply the changes before you click Ok.
One can also right click the gutter (the vertical bar where line number is shown) and select "Use Soft wraps" - thanks to Bajal for comment.
This is the easiest way, and i found it in comments. I think it should be an answer so everybody can see it easily.
(In Community Edition 2016+) go : IntelliJ IDEA>Preferences >Editor>General: select options "Use soft wraps in editor" and "Use original line's indent for wrapped parts"
OS X 10.8 IntelliJ Idea 15.0.5: IntelliJ IDEA Menu/Preferences/Editor/General/Soft Wraps
来源：https://stackoverflow.com/questions/23004520/code-wrap-intellij