Java Stream How to - Find first or return something else

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Question

We would like to know how to find first or return something else.

Answer

//from   w w w  .ja  v a  2 s. c  o  m
import java.util.Arrays;
import java.util.List;

public class Main {

  public static void main(String[] args) {

    List<String> names = Arrays.asList("HTML", "CSS", "CSS3", "Java", "SQL", "Javascript", "MySQL");

    String name5 = names.stream()
            .map(s -> s.toUpperCase())
            .filter(s -> s.length() < 5)
            .sorted((a, b) -> b.length() - a.length())
            .findFirst()
            .orElse("a");
    System.out.println(name5);

    String name2 = names.stream()
            .map(s -> s.toUpperCase())
            .filter(s -> s.length() < 2)
            .sorted((a, b) -> b.length() - a.length())
            .findFirst()
            .orElse("Somthing else");
    System.out.println(name2);
  }
}

The code above generates the following result.

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