iterating and filtering two lists using java 8

Question

I want to iterate two lists and get new filtered list which will have values not present in second list. Can anyone help?

I have two lists - one is list of strings,

Answer 1

Doing it with streams is easy and readable:

Predicate notIn2 = s -> ! list2.stream().anyMatch(mc -> s.equals(mc.str));
List list3 = list1.stream().filter(notIn2).collect(Collectors.toList());