单项选择题
A Company.com developer is designing the presentation tier for a web application that relies on a complex session bean. The session bean is still being developed and the APIs for are NOT finalized. Any changes to the session bean API directly impacts the development of the presentation tier.
Which design pattern provides a means to manage the uncertainty in the API？（）
A. View Helper
B. Front Controller
C. Composite View
D. Intercepting Filter
E. Business Delegate
F. Chain of Responsibility
相关考题
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多项选择题
A Company.com developer chooses to avoid using SingleThreadModel but wants to ensure that data is updated in a thread-safe manner. Which two can support this design goal？（）
A. Store the data in a local variable.
B. Store the data in an instance variable.
C. Store the data in the HttpSession object.
D. Store the data in the ServletContext object.
E. Store the data in the ServletRequest object. -
单项选择题
WhichHttpSessionmethodstoresanobjectinasession？（）
A. put（String name. Object value）
B. set（String name. Object value）
C. setAttribute（String name. Object value）
D. putAttribute（String name. Object value）
E. addAttribute（String name. Object value） -
单项选择题
Whichelementistheparentofthetaginthewebapplicationdeploymentdescriptor？（）
A. <web-app>
B. <filters>
C. <servlet>
D. <filter-list>
