Question

What is the purpose of the flatMap() method in a stream pipeline?

a) To combine multiple streams into a single stream

b) To transform each element of a stream into a new stream

c) To remove duplicates from a stream

d) To sort the elements of a stream

Answer 1

Answer: b) To transform each element of a stream into a new stream.

Explanation: The flatMap() method allows you to replace each element of a stream with a new stream, which is then flattened into a single stream.