单项选择题

11.classCup{}12.classPoisonCupextendsCup{}21.publicvoidtakeCup(Cupc){22.if(cinstanceofPoisonCup){23.System.out.println(”Inconceivable!”);24.}elseif(cinstanceofCup){25.System.out.println(”Dizzyingintellect!”);26.}else{27.System.exit(0);28.}29.}Andtheexecutionofthestatements:Cupcup=newPoisonCup();takeCup(cup);Whatistheoutput?()
A.Inconceivable!
B.Dizzyingintellect!
C.Thecoderunswithnooutput.
D.Anexceptionisthrownatruntime.
E.Compilationfailsbecauseofanerrorinline22.

A.classCup{}12.classPoisonCupextendsCup{}21.publicvoidtakeCup(Cupc){22.if(cinstanceofPoisonCup){23.System.out.println(”Inconceivable!”);24.}elseif(cinstanceofCup){25.System.out.println(”Dizzyingintellect!”);26.}else{27.System.exit(0);28.}29.}Andtheexecutionofthestatements:Cupcup=newPoisonCup();takeCup(cup);Whatistheoutput?()
A.Inconceivable!
B.Dizzyingintellect!
C.Thecoderunswithnooutput.
D.Anexceptionisthrownatruntime.
E.Compilationfailsbecauseofanerrorinline22.
微信扫码免费搜题