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History: Design Patterns: Observer

Design Patterns: Observer

The observer design pattern can be used when you want objects to know when something happens to an object being observed.

History for this article

Bruno Leonardo MichelsApproved
Jun 14, 2015, 6:26 AMArticle Created
Bruno Leonardo MichelsApproved
Jun 14, 2015, 1:46 PMArticle Updated

Editorial changes — reviews, status changes and edits — are shown to the author of this article and to the editors.