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1.classA{2.publicbytegetNumber（）{3.return1；4.}5.}6.7.classBextendsA{8.publicshortgetNumber（）{9.return2；10.}11.12.publicstaticvoidmain（Stringargs[]）{13.Bb=newB（）；14.System.out.printIn（b.getNumber（））15.}16.}Whatistheresult？（）
A.Compilationsucceedsand1isprinted.
B.Compilationsucceedsand2isprinted.
C.Anerroratline8causescompilationtofail.
D.Anerroratline14causescompilationtofail.
E.Compilationsucceedsbutanexceptionisthrownatline14.
参考答案
更多 “ 1.classA{2.publicbytegetNumber（）{3.return1；4.}5.}6.7.classBextendsA{8.publicshortgetNumber（）{9.return2；10.}11.12.publicstaticvoidmain（Stringargs[]）{13.Bb=newB（）；14.System.out.printIn（b.getNumber（））15.}16.}Whatistheresult？（）A.Compilationsucceedsand1isprinted.B.Compilationsucceedsand2isprinted.C.Anerroratline8causescompilationtofail.D.Anerroratline14causescompilationtofail.E.Compilationsucceedsbutanexceptionisthrownatline14. ” 相关考题
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1.classA{2.publicbytefileNumber(){3.returnl;4.}5.}6.7.ClassBextendsA{8.publicshortgetNumber(){9.return2;10.}11.12.publicshortgetNumber(){13.Bb=newB();14.System.out.printIn(b.getNumber());15.}16.}Whatistheresult（）?A.Compilationsucceedsandlisprinted.B.Compilationsucceedsand2printed.C.Anerroratline8causecompilationtofail.D.Anerroratline14causecomplicationtofail.E.Complicationsucceedsbutanexceptionisthrownatline14.
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1.classA{2.publicStringtoString（）{3.return4”；4.}5.}6.classBextendsA{7.publicStringtoString（）{8.returnsuper.toString（）+3”；9.}10.}11.publicclassTest{12.publicstaticvoidmain（String[]args）{13.System.out.printIn（newB（））；14.}15.}Whatistheresult？（）A.Compilationsucceedsand4isprinted.B.Compilationsucceedsand43isprinted.C.Anerroronline9causescompilationtofail.D.Anerroronline14causescompilationtofail.E.Compilationsucceedsbutanexceptionisthrownatline9.
考题
1.classA{2.publicintgetNumber（inta）{3.returna+1；4.}5.}6.7.classBextendsA{8.publicintgetNumber（inta）{9.returna+210.}11.12.publicstaticvoidmain（Stringargs[]）{13.Aa=newB（）；14.System.out.printIn（a.getNumber（0））；15.}16.}Whatistheresult？（）A.Compilationsucceedsand1isprinted.B.Compilationsucceedsand2isprinted.C.Anerroratline8causescompilationtofail.D.Anerroratline13causescompilationtofail.E.Anerroratline14causescompilationtofail.
考题
Whatproducesacompilererror?()
A.classA{publicA（intx）{}}B.classA{}classBextendsA{B（）{}}C.classA{A（）{}}classB{publicB（）{}}D.classZ{publicZ（int）{}}classAextendsZ{}
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InwhichtwocasesdoesthecompilersupplyadefaultconstructorforclassA?()
A.classA{}B.classA{publicA（）{}}C.classA{publicA（intx）{}}D.classZ{}classAextendsZ{voidA（）{}}
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publicclassA{2.voidA(){3.System.out.println(ClassA”);4.}5.publicstaticvoidmain(String[]args){6.newA();7.}8.}Whatistheresult?()
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考题
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若有类A与类B，则以下哪个不属于类的组合关系A．class A { B b; };B．class A { B* p; };C．class A { B bb[3]; };D．class A { public: fun(B b); };
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