Adds all elements to this Set.
Equivalent to adding each element in elements using add,
but some collections may be able to optimize it.
Source
void addAll(Iterable<E> elements) {
for (E element in elements) add(element);
}Adds all elements to this Set.
Equivalent to adding each element in elements using add,
but some collections may be able to optimize it.
void addAll(Iterable<E> elements) {
for (E element in elements) add(element);
}