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Iterator

Difficulty-Beginner Gang Of Four Java Behavioral

Also known as

Cursor

Intent

Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.

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Applicability

Use the Iterator pattern

  • to access an aggregate object's contents without exposing its internal representation
  • to support multiple traversals of aggregate objects
  • to provide a uniform interface for traversing different aggregate structures

Real world examples

Credits