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Module 10: Functional Programming and Streams

Lesson focus

Terminal Operations & Collectors

Leverage reduce, collect, matchers, and summary statistics for aggregated results.

Use collect(Collectors.toList()) or specialized collectors like groupingBy, partitioningBy, summarizingInt.

Reduce accumulates values manually; combine identity, accumulator, and combiner carefully.

Match operations (anyMatch, allMatch) allow short-circuiting; findFirst/findAny extract elements efficiently.

Lesson quiz

What does `Collectors.partitioningBy` return?

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