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Definitions from the Web

Iterator

Definition:

An iterator is an object that allows you to traverse through a collection or container, accessing its elements one by one.

Examples of usage:

1. Using an iterator, you can loop over each element in a list and perform a specific operation on it.
2. Iterators are commonly used in programming languages to loop over arrays, linked lists, or other data structures.
3. The iterator pattern provides an abstraction to access the elements of an aggregate object sequentially without the need to know its internal structure.
4. In Python, the iter() function can be used to obtain an iterator object from an iterable.
5. When iterating over a dictionary in Java, you can use the entrySet() method to get an iterator for its key-value pairs.

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