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==Example==
[[Image:javaIOdecorator.png|500 px|thumb|Java I/O classes]]
Java I/O
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==References==
Gamma, Erich; Helm, Richard; Johnson, Ralph; Vlissides, John (1994). Design Patterns: Elements of Reusable Object-Oriented Software. Addison-Wesley. ISBN 0-201-63361-2.
http://www.dofactory.com/Patterns/PatternDecorator.aspx
