garbage collection

[Suhita Reddy]

Hi,
when b1 is eligible 4 garbage collection

    public class Test
    {
        public static void main(String args[])
        {
            Byte b1 = new Byte("127");   //A
            
            Byte b2[] = new Byte[2];
            
            b2[1] = b1;
            
            b1 = null;                   //1
             
            b2[1] = null;                //2
            
            System.out.println(b1);      //3
            
            System.out.println(b2);      //4
        }
    
}

[ July 10, 2006: Message edited by: Barry Gaunt ]

[Barry Gaunt]

Please, please use

tags around your code. It makes code so much easier to read.

[Barry Gaunt]

when b1 is eligible 4 garbage collection

What "4" do you mean? Line 4?

Ha! We have a question here, not a statement.

"When is the object referenced by variable b1 eligible for garbage collection?"

You had me confused there with all this pseudo-speak.

[ July 10, 2006: Message edited by: Barry Gaunt ]
[ July 10, 2006: Message edited by: Barry Gaunt ]

[Suhita Reddy]

yes, line4

[Barry Gaunt]

My answer is just after the line numbered //2, there is no reference to the Byte("127") object at that point.

[Mike Noel]

Am I understanding correct? The original poster thinks that Byte("127") isn't available for GC until after line 4? It seems pretty clear that after line 2 that object is available, just as Barry said.

What is the reasoning you are using that makes you think it would be line 4? Maybe I'm missing something here.

_M_

[Suhita Reddy]

i also think in the same way.but they gave answer as at b1=null it is going to garbage collected

[Naseem Khan]

Byte Object will be eligible for GC after the execution of line 2. If you comment line b2[1] = b1; then same Byte object will be eligible for GC after the execution of line 1.

Naseem

[Amit Batra]

but they gave answer as at b1=null it is going to garbage collected

Who is saying this?