Difference between Collection Interface Set Interface
Answer: Below are difference:
| Collection Interface | Set Interface |
| Collection interface represents the group of objects which is known by its elements. | Set interface is Collection that cannot contain duplicate elements. |
| Collection extends Iterable interface (public interface Collection<E> extends Iterable<E>) | Whereas Set extends Collection interface (public interface Set<E> extends Collection<E>) |
| Collection is top level interface which works on group of objects and less precise | Because Set extends Collection so it’s more specific |
| Both has same method but return value has different meanings | Both has same method but return value has different meanings |
