How to correctly find the stream characteristics in Java-8?

Question

While doing stream operations, during the intermediate/pipeline operations the streams would be created with different characteristics(e.g: SORTED/SIZED/DISTINCT/ORDERED) - Mast

Answer 1

At each stage you can call:

int c = stream.spliterator().characteristics();

And then test the result against the constants defined in the Spliterator class. For example to see if the stream is ordered:

boolean isOrdered = (c & Spliterator.ORDERED) == Spliterator.ORDERED;

Alternatively you can use:

boolean isOrdered = stream.spliterator().hasCharacteristics(Spliterator.ORDERED);