R

Ram Sharma • 3.40K Points
Extraordinary

Q. Which collector is most suitable for combining total salary per department?

  • (A) groupingBy(dept, counting())
  • (B) groupingBy(dept, summingInt(salary))
  • (C) partitioningBy(dept)
  • (D) mapping(salary, toList())
  • Correct Answer - Option(B)
  • Views: 9
  • Filed under category Java
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Explanation by: Ram Sharma
Use `groupingBy(..., summingInt(...))` to group and total numeric values.

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