Java Coding Problems

Removing via Stream

Starting with JDK 8, we can create a Stream from a collection (Collection.stream()) and filter its elements via filter(Predicate p). The filter will only retain those elements that satisfy the given Predicate.

Finally, we collect these elements via the proper collector:

List<Melon> filteredMelons = melons.stream()  .filter(t -> t.getWeight() >= 3000)  .collect(Collectors.toList());

Unlike the other two solutions, this one doesn't mutate the original collection, but it may be slower and consume more memory.