How to have the formatter wrap code with IntelliJ?

Question

I'm not able to format my code in IntelliJ.

I can see the margin line (by default at 120 columns) but it seems that the activation from the menu:

Code -> Reformat Code

is just ignoring this margin.

Answer 1

IntelliJ IDEA 14, 15, 2016 & 2017

Format existing code

1. Ensure right margin is not exceeded

   File > Settings > Editor > Code Style > Java > Wrapping and Braces > Ensure right margin is not exceeded

   

2. Reformat code

   Code > Reformat code...

   

   or press Ctrl + Alt + L

   If you have something like this:

   thisLineIsVeryLongAndWillBeChanged();   // comment
   

   it will be converted to

   thisLineIsVeryLongAndWillBeChanged();   
   // comment  
   

   instead of

   // comment  
   thisLineIsVeryLongAndWillBeChanged();   
   

   This is why I select pieces of code before reformatting if the code looks like in the previous example.

Wrap when typing reaches right margin

• IntelliJ IDEA 14: File > Settings > Editor > Code Style > Wrap when typing reaches right margin

  

• IntelliJ IDEA 15, 2016 & 2017: File > Settings > Editor > Code Style > Wrap on typing