Help!!!

UBERTILT

Any coders know WTF this means and how best to answer it?

Question 4
Design patterns are commonly categorised as being creational, structural or behavioural. Regarding
the following list of design patterns:
 Observer
 Template Method
 Abstract Factory
 Strategy
 Façade
 Decorator
 Adapter
 Factory method

(a) Identify one creational, one structural and one behavioral design pattern and in each case -
state briefly why the pattern you identified is regarded as creational, structural or behavioral.
(6 marks)
(b) Choosing any three patterns from the above list:
(i) State how, use of the design pattern - allows for improved code re-use, and/or improved
flexibility, extensibility (or another design advantage you can identify)
(12 marks)
(c) Choosing any one pattern from the above list:
(i) Give an example implementation of the design pattern in code (i.e. show a complete
example of the design pattern)
(9 marks)
(ii) Write brief notes to describe (or comment) on the code you produce in part (i) to
explain how the code is an implementation of the design-pattern
(3 marks)
Total (30 marks)

counterpointaud

Wikipedia had most of the answers you need.

What course is this for, out of interest?

Media999

All you need to know is 3 patterns and examples that implement them.

Actually not as hard or long as it looks.

Factory - http://www.oodesign.com/factory-pattern.html
Template - http://www.oodesign.com/template-method-pattern.html
Decorator http://www.oodesign.com/decorator-pattern.html

neil_hosey

Your best bet would be to actually read a book on design patterns and their importance..

Quick google shows this cracker of a book:

http://www.uml.org.cn/c++/pdf/DesignPatterns.pdf

The Gang Of Four Patterns are pretty simple, just spend the time on them and understand them.. they may seem like bull**** on first reading, but try get past the theory and google application so them of which theres a infinate amounts..

Evil Phil

Your best bet would be to actually do your course work and readings, all the answers you need are in there.

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