Streams from Collections
Description
The Collection interface contains the stream() and parallelStream() methods that create sequential and parallel streams from a Collection, respectively.
Example
The following code creates streams from a set of strings:
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Stream;
/* w w w.j a v a 2 s. c o m*/
public class Main {
public static void main(String[] args) {
Set<String> names = new HashSet<>();
names.add("XML");
names.add("Java");
Stream<String> sequentialStream = names.stream();
sequentialStream.forEach(System.out::println);
Stream<String> parallelStream = names.parallelStream();
parallelStream.forEach(System.out::println);
}
}
The code above generates the following result.
