The following code shows how to output default if not found.
import java.util.Arrays; import java.util.List; import java.util.Optional; //from w ww.j a v a 2 s . c o m public class Main { public static void main(String[] args) { List<String> names = Arrays.asList("XML", "HTML", "Java", "Javascript", "CSS", "Static"); Optional<String> firstS = names.stream().filter(name -> name.startsWith("S")).findFirst(); System.out.println(firstS.orElse("None found")); } }
The code above generates the following result.