LongStream collect(Supplier supplier, ObjLongConsumer accumulator, BiConsumer combiner) example
Description
LongStream collect(Supplier<R> supplier,
ObjLongConsumer<R> accumulator, BiConsumer<R,R> combiner)
performs a mutable reduction operation on the elements of this stream.
Syntax
collect has the following syntax.
<R> R collect(Supplier<R> supplier, ObjLongConsumer<R> accumulator, BiConsumer<R,R> combiner)
Example
The following example shows how to use collect.
import java.util.ArrayList;
import java.util.List;
import java.util.stream.LongStream;
//w w w .j a v a2 s. com
public class Main {
public static void main(String[] args) {
LongStream b = LongStream.of(1L, 2L, 3L, 4L);
List<Long> v = b.collect(ArrayList::new, ArrayList::add, ArrayList::addAll);
System.out.println(v);
}
}
The code above generates the following result.
