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.
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.Justafterline5
B.Justafterline6
C.Justafterline7（thatis，asthemethodreturns）
D.Neverinthismethod.
相关考题：
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
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）.
publicclassArrayTest{2.publicstaticvoidmain(String[]args){3.floatf1[],f2[];4.f1=newfloat[10];5.f2=f1;6.System.out.printIn(f2[0]=”＋f2[0]);7.}8.}Whatistheresult?() A.Itprintsf2[0]=0.0B.Itprintsf2[0]=NaNC.Anerroratline5causescompiletofail.D.Anerroratline6causescompiletofail.E.Anerroratline6causesanexceptionatruntime.
floatf[][][]=newfloat[3][][];floatf0=1.0f;float[][]farray=newfloat[1][1];Whatisvalid?() A.f[0]=f0；B.f[0]=farray；C.f[0]=farray[0]；D.f[0]=farray[0][0]；
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）.
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.
有以下程序include main (){ printf("%d\n", NULL); }A.0B.1C.－1D.NULL没定义,出错 有以下程序 #include ＜stdio .h＞ main () { printf("%d\n", NULL); }A．0B．1C．-1D．NULL没定义，出错