Java Stream How to - Output default if not found








The following code shows how to output default if not found.

Example

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.