How to delete all comment lines in IDEA?

Question

I´m searching for a quick way to get rid of all comments in a file.

Looking for a keyboard shortcut or a quick and easy alternative.

Any suggestions?

EDIT

I would like particularly to delete only the out commented lines, so ones that start with //, not the block comments - which normally are meant for java-doc.

Answer 1

keyboardShortcut
Control + R - Replace

Type -->

 \s//.*  

Select .* in right top of replace window . then it will select all comment like this --> //

Thank you @Bas Leijdekkers

Answer 2

You could use Find & Replace (Ctrl/Cmd+R). Search In Comments Only (option under the little cog menu), enable regex search and search for string ^//.*. Replace with the empty string.