IntelliJ IDEA 14.0.0 Web Help

Commenting and Uncommenting Blocks of Code

In this section:

Basics

You can comment or uncomment the current line or selected block of source code.

Commenting feature extends to all supported file types. For the custom file types, you can define line and block comments characters, as described in the section Creating and Registering File Types.

Configuring commenting behavior

It is possible to force IntelliJ IDEA to place Java comments strictly at the left margin. To do that, in the Settings dialog, open Code Style | Java, and click Code Generation tab.

In the section Comment Code select the required check boxes:

ij_comment_code

If the check boxes are cleared, the comments characters are placed at the current caret position.

Commenting or uncommenting lines of code

To comment or uncomment the current line of code, do one of the following

  • On the main menu, choose Code | Comment with Line Comment .
  • Press Ctrl+Slash.
    comment1.png

Commenting or uncommenting blocks of code

To add or remove a block comment, do one of the following

  • On the main menu, choose Code | Comment with Block Comment .
  • Press Ctrl+Shift+Slash.
    comment2.png

See Also

Last modified: 12 November 2014
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