Optimize page: content/english/java/basic-comparison/mastering-document-comparison-java-groupdocs/_index.md - - Updated title, meta description, and front‑matter date to target primary keyword.

- Added Quick Answers and FAQ sections for AI search friendliness.
- Inserted multiple question‑based headings and expanded explanations for better human engagement.
- Integrated primary and secondary keywords throughout the content (3‑5 uses of primary, 1‑2 uses of each secondary).
- Added trust‑signal block at the end with last‑updated date, tested version, and author.

Author: muqarrab-aspose