A.Theprogramrunsandprintsnothing.
B.Theprogramrunsandprints“Finally”
C.Thecodecompiles,butanexceptionisthrownatruntime.
D.Thecodewillnotcompilebecausethecatchblockismissing.
Given1.publicclassFoo{2.publicstaticvoidmain(String[]args)}3.try{return;}4.finally{Syste.out.printIn(Finally”);}5.}6.}Whatistheresult()?A.Theprogramrunsandprintsnothing.B.Theprogramrunsandprints“Finally”.C.Thecodecomiles.Butanexceptionisthrownatruntime.D.Thecodewillnotcompilebecausethecatchblockismissing.
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staticvoidtest(){try{Stringx=null;System.out.print(x.toString()+);}finally{System.out.print(finally);}}publicstaticvoidmain(String[]args){try{test();}catch(Exceptionex){System.out.print(”exception);}}Whatistheresult?()A.nullB.finallyC.nullfinallyD.Compilationfails.E.finallyexception
publicclassfoo{publicstaticvoidmain(string[]args)try{return;}finally{system.out.printIn(Finally”);}}Whatistheresult?()A.Theprogramrunsandprintsnothing.B.Theprogramrunsandprints“Finally”C.Thecodecompiles,butanexceptionisthrownatruntime.D.Thecodewillnotcompilebecausethecatchblockismissing.
publicclassFoo{publicstaticvoidmain(String[]args){try{return;}finally{System.out.println(Finally”);}}}Whatistheresult?()A.FinallyB.Compilationfails.C.Thecoderunswithnooutput.D.Anexceptionisthrownatruntime.
publicclassTest{publicstaticvoidaMethod()throwsException{try{thrownewException();}finally{System.out.println(finally”);}}publicstaticvoidmain(Stringargs[]){try{aMethod();}catch(Exceptione){System.out.println(exception”);}System.out.println(finished”);}}Whatistheresult?()A.finallyB.exceptionfinishedC.finallyexceptionfinishedD.Compilationfails.
publicclassfoo{publicstaticvoidmain(Stringargs){Strings;system.out.printIn(s=”+s);}}Whatistheresult?()A.Thecodecompilesand“s=”isprinted.B.Thecodecompilesand“s=null”isprinted.C.Thecodedoesnotcompilebecausestringsisnotinitialized.D.Thecodedoesnotcompilebecausestringscannotbereferenced.E.Thecodecompiles,butaNullPointerExceptionisthrownwhentoStringiscalled.
下面程序段的执行结果是()。 public class Foo{ public static void main(String[] args){ try{ return; } finally { System.out.println("Finally!");} } }A.程序正常运行,但不输出任何结果B.程序正常运行,并输出Finally!C.编译能通过,但运行时会出现例外D.因为没有catch语句块,所以不能通过编译