package com.zetcode; import java.util.Arrays; import java.util.Optional; import java.util.Random; public class OptionalSimple { public static void main(String[] args) { var words = Arrays.asList("rock", null, "mountain", null, "falcon", "sky"); for (int i = 0; i < 5; i++) { Optional word = Optional.ofNullable(words.get( new Random().nextInt(words.size()))); word.ifPresent(System.out::println); } } }