Java How to Program, Early Objects, 11th Edition

... arrays or from ranges of elements in the arrays.

17.10.2 Sorting a Stream and Collecting the Results

The stream pipeline in lines 16–18

Arrays.stream(values)
      .sorted()
      .collect(Collectors.toList())

uses stream techniques to sort the values array and collect the results in a List<Integer>. First, line 16 creates a Stream<Integer> from values. Next, line 17 calls Stream method sorted to sort the elements—this results in an intermediate Stream<Integer> with the values in ascending order. (Section 17.11.3 discusses how to sort in descending order.)

Creating a New Collection Containing a Stream Pipeline’s Results

When processing streams, you often create new collections containing the results so that you can perform operations on them later. To do so, ...