单项选择题 YouworkasanapplicationdeveloperatCertkiller.com.YouaredevelopinganapplicationthatmakesuseofaQueueclassobjectnamedMyQueue.ThisQueueclassobjectwillbeusedtostoremessagessentbytheuserduringapplicationruntime.Youwouldliketoaccessthemessageatthebeginningofthequeue,priortoprocessingtheusermessages,withoutremovingit.Whatshouldyoudo?()
单项选择题 YouworkasanapplicationdeveloperatCertkiller.com.YouaredevelopinganapplicationthatmakesuseofaQueueclassobjectnamedMyQueue.ThisQueueclassobjectwillbeusedtostoremessagessentbytheuserduringapplicationruntime.Theapplicationthatyouaredevelopingprovidesaninterfaceforadministratorsandaninterfaceforuserstocreatemessagereports.YouwanttoensurethatallusermessagesstoredintheMyQueueobjectareremovedwhenanadministratorselectstheresetoption.Whatshouldyoudo?()
多项选择题 YouworkasanapplicationdeveloperatCertkiller.com.Certkiller.comhasinstructedyoutocreateaclassnamedMetricFormula.ThisclasswillbeusedtocompareMetricUnitandEnglishUnitobjects.TheMetricFormulaiscurrentlydefinedasfollows(Linenumbersareusedforreferencepurposesonly):1.publicclassMetricFormula2.{3.4.}YouneedtoensurethattheMetricFormulaclasscanbeusedtocomparetherequiredobjects.Whatshouldyoudo?()