Quick Answer
Streams API processes collections declaratively. Pipeline: source (list.stream()) -> intermediate operations (filter, map, sorted) -> terminal operation (collect, count, forEach). Lazy evaluation - intermediate ops only run when terminal op is called. Supports method chaining. Parallel streams: list.parallelStream(). Different from java.io streams - these are for processing sequences of data.
Answer
Streams provide functional-style operations for processing data sequences. Support map, filter, reduce, collect operations. Work in sequential or parallel mode.
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Verified Answer
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