单项选择题
单项选择题 YouneedtocreateaJavaBeanobjectthatisusedonlywithinthecurrentJSPpage.ItmustNOTbeaccessibletoanyotherpageincludingthosethatthispagemightimport.WhichJSPstandardactioncanaccomplishthisgoal?()
单项选择题 1.classAnimal{AnimalgetOne(){returnnewAnimal();}}2.classDogextendsAnimal{3.//insertcodehere4.}5.6.classAnimalTest{7.publicstaticvoidmain(String[]args){8.Animal[]animal={newAnimal(),newDog()};9.for(Animala:animal){10.Animalx=a.getOne();11.}12.}13.}和代码:3a.DoggetOne(){returnnewDog();}3b.AnimalgetOne(){returnnewDog();}第3行中插入的哪项将编译且运行无异常?()A.3a行B.3b行C.3a行或3b行D.既非3a,也非3b
单项选择题 classBirds{publicstaticvoidmain(String[]args){try{thrownewException();}catch(Exceptione){try{thrownewException();}catch(Exceptione2){System.out.print("inner");}System.out.print("middle");}System.out.print("outer");}}结果为:()A.innerB.innerouterC.middleouterD.innermiddleouter
单项选择题 Inform-basedauthentication,whatmustbeincludedintheHTMLreturnedfromtheURLspecifiedbytheelement?()
单项选择题 Whichactivitysupportsthedataintegrityrequirementsofanapplication?()