单项选择题
A. The HybridDictionary collection class.
B. The HashTable collection class.
C. The ListDictionary collection class.
D. The StringCollection collection class.
单项选择题 YouworkasanapplicationdeveloperatCertkiller.com.Certkiller.comhasbeencontractedtodevelopanapplicationforthelocalbank.Youhavebeengiventheresponsibilityofcreatingthisapplicationandneedtostoreeachtransactionrecord,whichisidentifiedusingacomplextransactionidentifier,inmemory.Thebankinformsyouthatthetotalamountoftransactionrecordscouldreach200perday.Toachievethis,youdecidetoutilizeoneoftheexistingcollectionclassesinthe.NET2.0classlibrary.Youneedtoensurethatyouthecollectionclassyouselectisthemostefficientoneforstoringtransactionrecords.Whatshouldyoudo?()
单项选择题 YouworkasanapplicationdeveloperatCertkiller.com.Youarecurrentlyintheprocessofreviewinganapplicationthatwascreatedbyafellowdeveloper.TheapplicationthatyouarereviewingincludesadeclarationforacollectionnamedEmployeeList,whichstoresEmployeeobjects.Thedeclarationisshownbelow:publicclassEmployeeList:Enumerator,IEnumerable{//Classimplementation}YourequiretheabilitytoiteratethroughtheEmployeeListwithminimumdevelopmenteffort.Whatshouldyoudo?()
单项选择题 YouworkastheapplicationdeveloperatCertkiller.com.Certkiller.comusesVisualStudio.NET2005asitsapplicationdevelopmentplatform.Youaredevelopinga.NETFramework2.0applicationusedtostoreatype-safelistofnamesande-mailaddresses.Thelistwillbepopulatedallatonesfromthesorteddatawhichmeansyouwellnotalwaysneedtoperforminsertionordeletionoperationsonthedata.Youarerequiredtochooseadatastructurethatoptimizesmemoryuseandhasgoodperformance.Whatshouldyoudo?()