get distinct values from list of objects java

1List<String> distinctElements = list.stream()
2                        .distinct()
3                        .collect(Collectors.toList());

1public Set<String> areas(final List<Employee> employees) {
2    Set<String> areas = new HashSet<>();
3    for(final Employee employee: employees) {
4        areas.add(employee.getArea());
5    }
6    return areas;
7}
8