Can Java 8 Streams operate on an item in a collection, and then remove it?

Question

Like just about everyone, I\'m still learning the intricacies (and loving them) of the new Java 8 Streams API. I have a question concerning usage of streams. I\'ll provide a

Answer 1

if I understand your question correctly:

set = set.stream().filter(item -> {
    if (item.qualify()) {
        ((Qualifier) item).operate();
        return false;
    }
    return true;
}).collect(Collectors.toSet());