Ctrl for Line Comment, Ctrl Shift for Block Comment

Set you own keyboard shortcut in Settings from File

WEB IntelliJ IDEA has keyboard shortcuts for most of its commands related to editing navigation refactoring debugging and other tasks.

WEB Code Comment With LineBlock Comment Ctrl Alt 0 Ctrl Shift 0

With JetBrains Rider a single keystroke is enough to comment or.

WEB To quickly add a line comment in IntelliJ IDEA press on macOS or Ctrl on Windows and Linux.

CmdAlts to open the IntelliJ-settings - select Keymap and search for Comment with Line Comment or Comment with Block..