Question

Describe, conceptually, what the Iterator pattern does?

Answer 1

The Iterator pattern allows sequential access to elements of an aggregate object without exposing its internal structure.

Step-by-step explanation:

The Iterator pattern is a behavioral design pattern that provides a way to access the elements of an aggregate object sequentially without exposing its underlying representation.

It allows us to access the elements of a collection one by one without knowing the internal structure of the collection.

For example, in Java, the Iterator interface provides methods like hasNext() and next() to iterate over the elements of a collection such as a List or Set.