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Is it possible to remove empty/blank lines using code formatting in Intellij IDEA?
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You can find and replace with regex option also
^(?:[\t ]*(?:\r?\n|\r))+. It searches all empty lines in file. You need to just replace it with emptyFile >> Setting >> Editor >> Code style java >>Blank lines tab
You should change to 0 in code label(as picture), It would remove all unnecessary blank line when press format shortcut: ctrl + alt + L
Just in case it helps someone using newer versions of Intellij, in Intellij IDEA 2016.2.4 it is
File -> Other Settings -> Default Settings -> Editor -> Code Style -> Java(or Scala or whatever your language is) -> Blank LinesYes. It is possible to configure the number of blank lines in the settings menu (CTRL+ATL+S):
File -> Settings -> Editor -> Code Style -> Java(or Scala or whatever your language is) -> Blank Lines