Iterator Returns: Match description to best choice answer.

An object that has methods that allow you to

process a collection of items one at a time.

A method that returns a boolean value indicating $i$

there is at least one more item to process.

A method to retrieve the next item in the

collection to process.

A class to help us read data from the user.

Methods which allow you to determine if the next

input token is a particular type.

Methods which retrieve values of specific types.