11.classa{12.publicvoidprocess(){System.out.print(”a,”);}}13.classbextendsa{14.publicvoidprocess()throwsIOException{15.super.process();16.System.out.print(”b,”);17.thrownewIOException();18.}}19.publicstaticvoidmain(String[]args){20.try{newb().process();}21.catch(IOExceptione){System.out.println(”Exception”);}}Whatistheresult?()A.ExceptionB.a,b,ExceptionC.Compilationfailsbecauseofanerrorinline20.D.Compilationfailsbecauseofanerrorinline14.E.ANullPointerExceptionisthrownatruntime.

11.classa{12.publicvoidprocess(){System.out.print(”a,”);}}13.classbextendsa{14.publicvoidprocess()throwsIOException{15.super.process();16.System.out.print(”b,”);17.thrownewIOException();18.}}19.publicstaticvoidmain(String[]args){20.try{newb().process();}21.catch(IOExceptione){System.out.println(”Exception”);}}Whatistheresult?()

A.Exception

B.a,b,Exception

C.Compilationfailsbecauseofanerrorinline20.

D.Compilationfailsbecauseofanerrorinline14.

E.ANullPointerExceptionisthrownatruntime.


相关考题:

staticvoidtest()throwsRuntimeException{try{System.out.print(”test);thrownewRuntimeException();}catch(Exceptionex){System.out.print(”exception);}}publicstaticvoidmain(String[]args){try{test();}catch(RuntimeExceptionex){System.out.print(”runtime);}System.out.print(”end);}Whatistheresult?()A.testendB.Compilationfails.C.testruntimeendD.testexceptionendE.AThrowableisthrownbymainatruntime.

11.classA{12.publicvoidprocess(){System.out.print(”A);}}13.classBextendsA{14.publicvoidprocess()throwsRuntimeException{15.super.process();16.if(true)thrownewRuntimeException();17.System.out.print(B”);}}18.publicstaticvoidmain(String[]args){19.try{((A)newB()).process();}20.catch(Exceptione){System.out.print(”Exception);}21.}Whatistheresult?()A.ExceptionB.AExceptionC.AExceptionBD.ABExceptionE.Compilationfailsbecauseofanerrorinline14.F.Compilationfailsbecauseofanerrorinline19.

Whatproducesacompilererror?() A.classA{publicA(intx){}}B.classA{}classBextendsA{B(){}}C.classA{A(){}}classB{publicB(){}}D.classZ{publicZ(int){}}classAextendsZ{}

InwhichtwocasesdoesthecompilersupplyadefaultconstructorforclassA?() A.classA{}B.classA{publicA(){}}C.classA{publicA(intx){}}D.classZ{}classAextendsZ{voidA(){}}

publicclassX{publicstaticvoidmain(String[]args){try{badMethod();System.out.print(A”);}catch(Exceptionex){System.out.print(C”);}finally{System.out.print(B”);}System.out.print(D”);}publicstaticvoidbadMethod(){thrownewError();}}Whatistheresult?()A.ABCDB.Compilationfails.C.Cisprintedbeforeexitingwithanerrormessage.D.BCisprintedbeforeexitingwithanerrormessage.E.BCDisprintedbeforeexitingwithanerrormessage.

publicclassX{publicstaticvoidmain(String[]args){try{badMethod();System.out.print(A”);}catch(RuntimeExceptionex){System.out.print(B”);}catch(Exceptionex1){System.out.print(C”);}finally{System.out.print(D”);}System.out.print(E”);}publicstaticvoidbadMethod(){thrownewRuntimeException();}}Whatistheresult?()A.BDB.BCDC.BDED.BCDEE.ABCDEF.Compilationfails.

publicclassX{publicstaticvoidmain(String[]args){try{badMethod();System.out.print(A”);}catch(Exceptionex){System.out.print(B”);}finally{System.out.print(C”);}System.out.print(D”);}publicstaticvoidbadMethod(){thrownewRuntimeException();}}Whatistheresult?()A.ABB.BCC.ABCD.BCDE.Compilationfails.

publicclassX{publicstaticvoidmain(String[]args){try{badMethod();System.out.print(A”);}catch(Exceptionex){System.out.print(B”);}finally{System.out.print(C”);}System.out.print(D”);}publicstaticvoidbadMethod(){}}Whatistheresult?()A.ACB.BDC.ACDD.ABCDE.Compilationfails.

下面能表示一个正确的类的是( )。A.class AB.class A()C.class A[]D.class A{}