(parameter1, parameter2, ..., parameterN) -> { body } <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-collections4</artifactId> <version>4.4</version> </dependency> import java.util.Arrays; import java.util.List; public class FunctionalCollectionsExample { public static void main(String[] args) { List<String> fruits = Arrays.asList("apple", "banana", "cherry", "date"); fruits.stream() } }