IntStream sum() in Java
IntStream sum() returns the sum of elements in this stream. This is a special case of a reduction. IntStream sum() is a terminal operation i.e, it may traverse the stream to produce a result or a side-effect.
Note : A reduction operation (also called a fold) takes a sequence of input elements and combines them into a single summary result by repeated application of a combining operation, such as finding the sum or maximum of a set of numbers.
Return Value : The function returns the sum of elements in this stream.
Example 1 :
Example 2 :
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