DesignPatterns.txt

[HFDP pg 9]
Design principle: Separate aspects that ______ from what _________

vary,stays the same
[HFDP pg 11]
Design principle: Program to an ___________, not an implementation

interface
[HFDP pg 23]
What's usually better in OO design? Inheritance or Composition?

Composition
[HFDP pg 24]
What is the Stategy Pattern?

A family of algorithms that when encapsulated and made interchangeable, allow the algorithms to vary independently from clients that use it.
[HFDP pg 51]
What is the Observer Pattern

Defines a one-to-many dependency between object so that when one object changes state, all of its dependents are notified and updated automatically
[HFDP pg 86]
Fill in the blanks: Classes should be _____ for extension, but _______ for modification.
- Open
- Closed
[HFDP pg 91]
What does the Decorator Pattern do?

Attaches additional responsibilities to an object dynamically, providing a flexible alternative to subclassing for extending functionality.
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Author

iranye

222612

Card Set

DesignPatterns.txt

Description

Covers Items Discussed in Head First Design Patterns

Updated

2013-06-05T23:41:35Z