addAll method Null safety
- Iterable<
E> elements
Adds all elements to this set.
Equivalent to adding each element in elements using add,
but some collections may be able to optimize it.
Implementation
void addAll(Iterable<E> elements);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);