What is the output of the following?
Predicate<? super String> predicate = s -> s.length() > 3; Stream<String> stream = Stream.iterate("-", (s) -> s + s); boolean b1 = stream.noneMatch(predicate); boolean b2 = stream.anyMatch(predicate); System.out.println(b1 + " " + b2);
A. false true B. false false C. java.util.stream.ReferencePipeline$3@1234d9a3 D. The code does not compile. E. An exception is thrown. F. The code hangs.
E.
An infinite stream is generated where each element is twice as long as the previous one.
b1 is set to false because Java finds an element that doesn't match when it gets to the element of length 4.
However, the next line tries to operate on the same stream.
Since streams can be used only once, this throws an exception that the "stream has already been operated upon or closed."
If two different streams were used, the result would be option A.