问题:
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. return oa[0];
8. }
9. }
When is the float object created in line 3, eligible for garbage collection?()
A . Just after line 5
B . Just after line 6
C . Just after line 7 (that is, as the method returns)
D . Never in this method.
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. return oa[0];
8. }
9. }
When is the float object created in line 3, eligible for garbage collection?()
● 参考解析
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