Java’s stream operations would become more flexible and expressive and allow custom intermediate operations to manipulate streams of infinite size to the extent possible, under a proposal in the ...

2. the stream you defined there only contains an intermediate operation, and no terminal operation. This means that nothing will actually happen when you run this code, as streams in Java are lazy.

A preview feature in Java is one that is not yet added permanently even though its design, specification, and implementation are complete. Presently Java has quite a few preview features in the ...