Java tutorial
import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class Main { public static void main(String[] args) { List<String> names = Arrays.asList("CSS", "CSS3", "HTML", "Java", "Javascript", "Oracle", "MySQL"); String name5 = names.stream().map(Main::toUpperCase).filter(Main::greaterThanFive).limit(2) .collect(Collectors.joining(" + ")).toString() + " = WSM!!!"; System.out.println(name5); } private static String toUpperCase(String s) { System.out.println("toUpperCase: " + s); return s.toUpperCase(); } private static boolean greaterThanFive(String s) { System.out.println("greaterThanFive: " + s); return s.length() > 5; } }