Lecture overview -- Keyboard shortcut: 'u'  Previous page: Patterns and Techniques [Section] -- Keyboard shortcut: 'p'  Next page: The Decorator Pattern at Run Time -- Keyboard shortcut: 'n'  Lecture notes - all slides together  Annotated slide -- Keyboard shortcut: 't'  Textbook -- Keyboard shortcut: 'v'  Alphabetic index  Help page about these notes  Course home    Input and Output Classes - slide 38 : 40

The Decorator Pattern
The Decorator design pattern attaches responsibilities to objects dynamically