Filter twice
Description
The following code shows how to filter twice.
Example
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
//w w w.j a va2 s. c o m
public class Main {
public static void main(String[] args) {
List<String> liste = Arrays.asList("XML", "HTML", "CSS", null);
liste.parallelStream()// Parallel stuff uses Fork-Join
.filter(e -> (!Objects.equals(e, null))) // lazy & parallel
.filter(e -> (e.length() > 3)) // lazy & parallel
.forEach(e -> { // sequential & eagerly
System.out.println("Bigger length than 3 in List: " + e);
});
}
}
The code above generates the following result.