Java Stream How to - Find first or return somthing else
Question
We would like to know how to
find first or return somthing else.
Answer
//from www. j a 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);