R

Ram Sharma • 3.40K Points
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Q. What is the main purpose of downstream collectors?

  • (A) To pre-process elements before streaming
  • (B) To apply post-processing to stream results
  • (C) To be used inside another collector like `groupingBy` or `partitioningBy`
  • (D) To collect into files
  • Correct Answer - Option(C)
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  • Filed under category Java
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Explanation by: Ram Sharma
Downstream collectors are used inside collectors like `groupingBy()` to further transform or aggregate values.

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