On day 2, you learned that Stream API can help you work with collections in a declarative manner. We looked at the collect
method, which is a terminal operation that collects the result set of a stream pipeline in a List
. The collect
method is a reduction operation that reduces a stream to a collection. The collect
method takes a Collector
which let us implement functionalities like group by, partitioning, very easily. Continue reading “Day 3: Let’s collect data using Stream API”