HeadFirst design pattern <2>

HeadFirst design pattern <2>

1 decorator pattern

Starbucks Coffee

Drink

to sum up

If the policy mode is achieved by a combination of elasticity, then the decorator pattern is to be achieved through inheritance, at the same time to achieve, customers using the basic feel of the decorator pattern

2 adapter mode

Object Adapter

Class Adapter

Turkey

to sum up

Decorator Pattern and the Adapter pattern very much like, adapter mode is the adaptation object interface, and the new responsibilities objects to the case of the decorator pattern does not change the object's interface.