Java tutorial
import java.util.Set; import java.util.stream.Collectors; import java.util.stream.Stream; public class Main { public static void main(String[] args) { // collect as typed array Stream<String> words = Stream.of("All", "men", "are", "created", "equal"); Set<String> wordsSet = words.collect(Collectors.toSet()); wordsSet.forEach(n -> System.out.println(n)); } }