Common elements in two lists

Question

I have two ArrayList objects with three integers each. I want to find a way to return the common elements of the two lists. Has anybody an idea how I can achiev

Answer 1

Below code Remove common elements in the list

List result =  list1.stream().filter(item-> !list2.contains(item)).collect(Collectors.toList());

Retrieve common elements

List result = list1.stream()
                .distinct()
                .filter(list::contains)
                .collect(Collectors.toList());