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Questions on Garbage Collections

 
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Hello Friends,

I find really confusing when I tried to solve questions like "How many objects are eligible at garbage collection". Can you please suggest me some trick

Secondly in question like

obj a=new Integer();
boj b=new Long();
a=null; ....1
a=b; ....2

Will the object a be eligible for gc at line 1?

thanks
shashank
 
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"How many objects are eligible at garbage collection". Can you please suggest me some trick



Use picture representation



Will the object a be eligible for gc at line 1?



After line 1 Object is eligible for GC
 
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