题目内容

WhichtwoarecharacteristicsoftheFrontControllerpattern?()

A. Itsimplifiesremoteinterfacestodistributedobjects.
B. Itpromotescleanerapplicationpartitioningandencouragesreuse.
C. Itprovidesaninitialpointofcontactforhandlingallrelatedrequests.
D. Itreducesmaintainabilityduetotheincreasedcomplexityofthedesign.
E. Itprovideslooselycoupledhandlersthatcanbecombinedinvariouspermutations.

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AdeveloperisdesigningawebapplicationwhichextensivelyusesEJBsandJMS.ThedeveloperfindsthatthereisalotofduplicatedcodetobuildtheJNDIcontextstoaccessthebeansandqueues.Further,becauseofthecomplexity,therearenumerouserrorsinthecode.WhichJ2EEdesignpatternprovidesasolutionforthisproblem?()

A. Command
B. TransferObject
C. ServiceLocator
D. SessionFacade
E. BusinessDelegate

原型的定向中原型指的是心智活动的原样。()

呈现控制指利用素材呈现方式的可控性。()

原型的操作阶段就是让学生了解程序性知识。()

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