寒冷对于（)相当于黑暗对于（)A．冰箱—电灯B．被子—蜡烛C．孤单—恐惧D．舒适—光明

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.ABCD

B.Compilationfails.

C.Cisprintedbeforeexitingwithanerrormessage.

D.BCisprintedbeforeexitingwithanerrormessage.

E.BCDisprintedbeforeexitingwithanerrormessage.

A.publicvoidaMethod（）{}

B.privatevoidaMethod（）{}

C.publicvoidaMethod（Strings）{}

D.privateYaMethod（）{returnnull；}

E.publicXaMethod（）{returnnewY（）；}

A.assert（!（map.contains（x）））；map.add（x）；

B.if（x>0）{}else{assert（x==0）；}

C.publicvoidaMethod（intx）{assert（x>0）；}

D.assert（invariantCondition（））；returnretval；

E.switch（x）{case1：break；case2：creak；default：assert（x==0）；

A.i=6andj=5

B.i=5andj=5

C.i=6andj=4

D.i=5andj=6

E.i=6andj=6

classSuper{publicinti=0；publicSuper（Stringtext）{i=1；}}publicclassSubextendsSuper{publicSub（Stringtext）{i=2；}publicstaticvoidmain（Stringargs[]）{Subsub=newSub（Hello”）；System.out.println（sub.i）；}}Whatistheresult？（）

A.0

B.1

C.2

D.Compilationfails.

A.TherearenoinstancedofAthatwillbecomeeligibleforgarbagecollection.

B.ExplicitlysettingmyAtonullmarksthatinstancetobeeligibleforgarbagecollection.

C.AnycallontryIt（）causestheprivateinstanceofAtobemarkedforgarbagecollection.

D.PrivateinstancesofAbecomeeligibleforgarbagecollectionwheninstancesofAlphabecomeeligibleforgarbagecollection.

A.0

B.2

C.4

D.6

E.9

F.13

A.i=1，j=0

B.i=1，j=4

C.i=3，j=4

D.i=3，j=0

E.Compilationfails.

publicvoidfoo（booleana，booleanb）{if（a）{System.out.println（A”）；}elseif（a&&b）{System.out.println（A&&B”）；}else{17.if（!b）{System.out.println（notB”）；}else{System.out.println（ELSE”）；}}}Whatiscorrect？（）

A.Ifaistrueandbistruethentheoutputis“A&&B”.

B.Ifaistrueandbisfalsethentheoutputis“notB”.

C.Ifaisfalseandbistruethentheoutputis“ELSE”.

D.Ifaisfalseandbisfalsethentheoutputis“ELSE”.

A.Hello

B.HelloFoo

C.Helloworld

D.Compilationfails.

E.Thecodedoesnotrun.