DoubleStream count() in Java with examples
DoubleStream count() returns the count of elements in the stream. DoubleStream count() is present in java.util.stream.DoubleStream. This is a special case of a reduction i.e, it takes a sequence of input elements and combines them into a single summary result.
Note : This is a terminal operation i.e, it may traverse the stream to produce a result or a side-effect. After the terminal operation is performed, the stream pipeline is considered consumed, and can no longer be used.
Example 1 : Count the elements in DoubleStream.
Example 2 : Count distinct elements in DoubleStream.
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