How Can I Control Eclipse's Code Formatting for Specific Code Sections?

Controlling Code Formatting in Eclipse for Specific Code Sections

Eclipse's code formatter provides a convenient way to maintain code consistency, but it may not always align with your formatting preferences for certain code structures. To avoid undesired formatting changes, you can instruct Eclipse to ignore specific lines of code.

Eclipse 3.6 and Later

In Eclipse 3.6 and subsequent versions, you can utilize special comments to control formatting. To disable formatting for a code block, insert the following comment at its beginning:

// @formatter:off

And to re-enable formatting, use this comment:

// @formatter:on

To activate this feature, navigate to Java > Code Style > Formatter > Edit > Off/On Tags. Enable the Enable Off/On tags checkbox and specify the desired tag keywords (e.g., START-ECLIPSE-FORMATTING and STOP-ECLIPSE-FORMATTING).

Note: Ensure that these comments are not placed within Javadoc comments, as it can result in Javadoc generation errors.

Additional Considerations

• Re-configuration for Eclipse Users: The Eclipse users who encounter formatting issues may need to adjust their Preferences settings in Eclipse to enable the Off/On tags functionality.
• Alternative Approaches: If the comment-based approach is not suitable, consider using a different external formatter like Jalopy or JIndent that can respect your custom formatting rules.

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