Question

Which of the following is true about the Stream.concat() method in Java 8?

a) It creates a new stream that is the concatenation of two streams.

b) It creates a new stream that is the intersection of two streams.

c) It creates a new stream that is the union of two streams.

d) It creates a new stream that is the difference of two streams.

Answer 1

Answer: a) It creates a new stream that is the concatenation of two streams.

Explanation: The Stream.concat() method creates a new stream that contains all the elements of two given streams, in the order they are encountered.