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1.classA{3.publicStringtoString(){4.return4”;5.}6.}7.classBextendsA{8.publicStringtoString(){9.returnsuper.toString()+3”;10.}11.}12.publicclassTest{13.publicstaticvoidmain(String[]args){14.System.out.printIn(newB());15.}16.}Whatistheresult()?

A.Compilationsucceedsand4isprinted.

B.Compilation……………isprinted.

C.Anerroronline9causecompilationtofail.

D.Anerroronline14causecompilationtofail.

E.Compilationsucceedsbutanexceptionisthrownatline9.


参考答案

更多 “ 1.classA{3.publicStringtoString(){4.return4”;5.}6.}7.classBextendsA{8.publicStringtoString(){9.returnsuper.toString()+3”;10.}11.}12.publicclassTest{13.publicstaticvoidmain(String[]args){14.System.out.printIn(newB());15.}16.}Whatistheresult()?A.Compilationsucceedsand4isprinted.B.Compilation……………isprinted.C.Anerroronline9causecompilationtofail.D.Anerroronline14causecompilationtofail.E.Compilationsucceedsbutanexceptionisthrownatline9. ” 相关考题
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