Keyboard Shortcuts for Code Commenting in IntelliJ IDEA

Line Comment: Ctrl

To quickly add a line comment in IntelliJ IDEA, press Ctrl on Windows and Linux, or Cmd on macOS. This will add a comment symbol (//) to the beginning of the selected line.

Block Comment: Ctrl + Shift

To create a block comment, select the code you want to comment and press Ctrl + Shift on Windows and Linux, or Cmd + Shift on macOS. This will surround the selected code with a /* and */.

Custom Keyboard Shortcuts

You can set your own custom keyboard shortcuts for commenting in IntelliJ IDEA. To do this, go to File > Settings and select Keymap. In the search bar, type "Comment" and you will see a list of available shortcuts. You can click on any shortcut and press a new key combination to reassign it.

JetBrains Rider Shortcut

If you are using JetBrains Rider, you can comment or uncomment code with a single keystroke. Press Ctrl + Alt + 0 (Windows and Linux) or Cmd + Alt + 0 (macOS) to toggle line commenting, or press Ctrl + Shift + 0 (Windows and Linux) or Cmd + Shift + 0 (macOS) to toggle block commenting.