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public Object m() { Object o = new Float(3.14F); Object oa = new Object; oa = o; /* Line 5 */ o = null; /* Line 6 */ oa = null; /* Line 7 */ return o; /* Line 8 */ } When is the Float object, created in line 3, eligible for garba

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1. 

public Object m()
{
Object o = new Float(3.14F);
Object [] oa = new Object[l];
oa[0] = o; /* Line 5 */
o = null; /* Line 6 */
oa[0] = null; /* Line 7 */
return o; /* Line 8 */
}

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
[D]. just after line 8

Answer: Option C

Explanation:

Option A is wrong. This simply copies the object reference into the array.

Option B is wrong. The reference o is set to null, but, oa[0] still maintains the reference to the Float object.

Option C is correct. The thread of execution will then not have access to the object.

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