Grouping and Windowing

Functions that collect elements into groups or windows

Function	Description
group()	Turn a `Stream<INPUT>` into a `Stream<List<INPUT>>` where adjacent equal elements are in the same `List` and equality is measured by `Object::equals()`.
groupBy()	Turn a `Stream<INPUT>` into a `Stream<List<INPUT>>` where adjacent equal elements are in the same `List` and equality is measured by the given `mappingFunction`.
groupOrdered()	Convert the input stream of `Comparable` objects into lists of ordered objects.
groupOrderedBy()	Convert the input stream of objects into lists of ordered objects, as measured by the given `Comparator`.
window()	Create windows over the elements of the input stream that are `windowSize` in length, sliding over `stepping` elements and optionally including partial windows at the end of the stream.