An iterator is an object (like a pointer) that points to an element inside the container. We can use iterators to move through the contents of the container. ... A pointer can point to elements in an array, and can iterate through them using the increment operator (++).

What is the point of iterators?

The primary purpose of an iterator is to allow a user to process every element of a container while isolating the user from the internal structure of the container. This allows the container to store elements in any manner it wishes while allowing the user to treat it as if it were a simple sequence or list.

What are iterators explain with an example?

An Iterator is an object that can be used to loop through collections, like ArrayList and HashSet. It is called an "iterator" because "iterating" is the technical term for looping. To use an Iterator, you must import it from the java.