单项选择题
A.is also called a static member
B.is always a variable
C.is never a method
D.belongs to a single instance, not to the class as a whole
E.always represents an operation
单项选择题 Anobjectis()
单项选择题 Amethodis()
单项选择题 1. public class X { 2. public object m () { 3. object o = new float (3.14F); 4. object [] oa = new object [1]; 5. oa[0]= o; 6. o = null; 7. oa[0] = null; 10. return o; 9. } 10. } When is the float object created in line 3, eligible for garbage collection?()