Java Optional if present

/**
 * @author lautturi.com 
 * Java example: Java Optional ifpresent / check whether a value is present
 */

import java.util.*;

public class Lautturi {
	public static void main(String[] args) {
		List<Integer> numList = Arrays.asList(42, 44, 43, 41);

		Comparator<Integer> comparator = Comparator.comparing(Integer::intValue);

		Optional<Integer> minOptional = numList.stream().min(comparator);
		minOptional.ifPresent(e -> System.out.println("Min: " + e));

	}
}

output:

Min: 41