Answer Happy

please help me with this question asap, will upvote, thankyou
public class StackTest{ public static void main(String[] args) { } O 16 15 17 } What is the value returned when stack.peek() is called? O 18 Stack<Integer> stack = new Stack<Integer>(); for (int i = 10; i < 20; i++) stack.push(i); stack.pop(); stack.pop(); stack.pop();