Unary Operator - how it is working in this case??

Hi,
I have got a piece of code...some one plz clearify the output of this code.
int a = 10;
a = a++; //1
a++; //2
System.out.println(a);
now the problem is that if i comment line //2 then the output is 10. If I comment the line at //1 and removing the comment at line at //2 then the output is 11.
Can some one plz help me out to know what is happening behind the scene.
Thanks
GShankar

a = a++; //1In the above expression the right hand side of the assignement is first evaluted (to 10 in your example). Then a is incremented to 11. Finally a is assigned the result of the right hand side evaluation so it becomes 10 again.
So the total effect of the expression is that nothing happens.

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Do the chairs continue to get created (which means the variable i keeps incrementing) and the finalize method keep getting called (which means finalized keeps incrementing) till the system realizes it is really low on memory and starts reclaiming memory ie i now starts decrementing ?
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Nice example, but Bruce chose some suboptimal names, I think.
"i" can be thought of as the "ID" of a given Chair (note that it is not static). It is neither incremented nor decremented - it's just assigned from "created". This lets us identify specific chairs (like, say, "Chair #47").
"created" is a running total of the number of times the Chair constructor has been called.
"finalized" is a running total of the number of Chairs that have been finalized.
The process starts creating Chairs as fast as it can. Eventually, memory gets low, and gc() starts collecting Chairs. While that's happening, chairs are still being created in the main Thread. So "created" and "finalized" may both be incrementing at the same time.
When gc() picks Chair#47, the finalizer code sets a flag that causes new Chairs to stop being created. This causes the program to fall out of the while() loop, and the program spits out its data and exits.
On my machine, the program created 29,542 chairs before exiting.
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Does that make more sense?
Grant
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Unary Operator - how it is working in this case??

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