publicclassX{publicobjectm(){objecto=newfloat(3.14F);objectoa=newobject[1];oa[0]=o;o=null;returnoa[0];}}Whenisthefloatobjectcreatedinline3,eligibleforgarbagecollection?() A.Justafterline5B.Justafterline6C.Justafterline7（thatis，asthemethodreturns）D.Neverinthismethod.
publicclassX{publicobjectm(){objecto=newfloat(3.14F);objectoa=newobject[1];oa[0]=o;o=null;returnoa[0];}}Whenisthefloatobjectcreatedinline3,eligibleforgarbagecollection?()
A.Justafterline5
B.Justafterline6
C.Justafterline7（thatis，asthemethodreturns）
D.Neverinthismethod.
相关考题：
Whichthreewillcompileandrunwithoutexception?() A.privatesynchronizedObjecto；B.voidgo（）{synchronized（）{/*codehere*/}C.publicsynchronizedvoidgo（）{/*codehere*/}D.privatesynchronized（this）voidgo（）{/*codehere*/}E.voidgo（）{synchronized（Object.class）{/*codehere*/}F.voidgo（）{Objecto=newObject（）；synchronized（o）{/*codehere*/}
1.public class GC{2.private Objec to；3.private void doSomethingElse（Object obj）{o=obj；}4.public void doSomething（）{5.Object o=new Object（）；6.doSomethingElse（o）；7.o=new Object（）；8.doSomethingElse（null）；9.o=null；10.}11.}When the doSomething method is called，after which line does the Object created in line 5 become available for garbage collection？（）A.Line5B.Line6C.Line7D.Line8E.Line9F.Line10
Whichthreewillcompileandrimwithoutexception?() A.privatesynchronizedObjecto；B.voidgo（）{synchronized（）{/*codehere*/}}C.publicsynchronizedvoidgo（）{/*codehere*/}D.privatesynchronized（this）voidgo（）{/*codehere*/}E.voidgo（）{synchronized（Object.class）{/*codehere*/}}F.voidgo（）{Objecto=newObject（）；synchronized（o）{/*codehere*/}}
publicclassX{2.publicobjectm(){3.objecto=newfloat(3.14F);4.object[]oa=newobject[1];5.oa[0]=o;6.o=null;7.oa[0]=null;10.returno;9.}10.}Whenisthefloatobjectcreatedinline3,eligibleforgarbagecollection?() A.Justafterline5.B.Justafterline6.C.Justafterline7.D.Justafterline8（thatis，asthemethodreturns）.
publicclassX(2.publicobjectm(){3.objecto=newfloat(3.14F);4.object[]oa=newobject[1];5.oa[0]=o;6.o=null;7.returnoa[0];8.}9.}Whenisthefloatobjectcreatedinline3,eligibleforgarbagecollection?() A.Justafterline5B.Justafterline6C.Justafterline7（thatis，asthemethodreturns）D.Neverinthismethod.
publicObjectm(){11.Objecto=newFloat(3.14F);12.Object[]oa=newObject[1];13.oa[0]=o;14.o=null;15.returnoa[0];16.}WhenistheFloatobject,createdinline11,eligibleforgarbagecollection?() A.Justafterline13.B.Justafterline14.C.Neverinthismethod.D.Justafterline15（thatis，asthemethodreturns）.
publicclassX{publicobjectm(){objecto=newfloat(3.14F);objectoa=newobject[1];oa[0]=o;o=null;oa[0]=null;returno;}}Whenisthefloatobjectcreatedinline3,eligibleforgarbagecollection?() A.Justafterline5.B.Justafterline6.C.Justafterline7.D.Justafterline8（thatis，asthemethodreturns）.
在下列代码中，有（）处实现了拆箱。 int score=5; object o= score; o=10; score =（int)o; object oScore = score;A．0B．1C．2D．3
下面的程序会抛出什么异常类型？ public class Test { public static void main（String[] args) { Object o = new Object（); String d = （String)o; } }A．ArithmeticExceptionB．ArrayIndexOutOfBoundsExceptionC．StringIndexOutOfBoundsExceptionD．ClassCastException