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Added real world example for Iterator.

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Ilkka Seppälä 2015-02-25 20:52:54 +02:00
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@ -270,6 +270,9 @@
* to support multiple traversals of aggregate objects
* to provide a uniform interface for traversing different aggregate structures
**Real world examples:**
* [java.util.Iterator](http://docs.oracle.com/javase/6/docs/api/java/util/Iterator.html)
## <a name="mediator">Mediator</a> [&#8593;](#list-of-design-patterns)
**Intent:** Define an object that encapsulates how a set of objects interact. Mediator promotes loose coupling by keeping objects from referring to each other explicitly, and it lets you vary their interaction independently.