Java - getting max value from an arraylist of objects?

Question

Is there an easy way to get the max value from one field of an object in an arraylist of objects?

For example, out of the following object, I was hoping to get the h

Answer 1

You should iterate over the list comparing/finding the max value O(N). If you need to do this often replace the list with a PriorityQueue O(1) to find the max.