Iterable vs Iterator interfaces in Java.

Iterable Interface	Iterator Interface
Represents a collection that can be traversed using foreach loop.	Allows to iterate over some other collection.
The class that implements the iterable interface has to override iterator() method.	hasNext() and next() methods of Iterator interface are to be overridden by class implementing it.
Does not store the current state.	Stores the current state of iteration.
An instance of the iterator interface should be produced every time iterator() method is called.	No such contract for iterator interface.
Moves only in the forward direction.	Moves in the forward direction and subinterfaces like listIterator support bidirectional traversing.
Does not provide any method to modify the elements during iteration.	Provides the remove method that can remove element when iteration is in progress.