Interesting assignment

[manali]

Hello
Here is a sample of code
int i = 0;
i=i++;
System.out.println(i);
Can you guess what will be the output ? Output is 0. Could anybody explain the reason !!

[Praveen Zala]

Hi Manali,
I have a piece of code similar to the one u have written..
the output is 1 for the following code... wonder why ??
int a,i = 0;
a = i++;
System.out.println(i);
Can anyone explain this ?
Praveen Zala

[Minoru Horie]

Originally posted by manali:
Hello
Here is a sample of code
int i = 0;
i=i++;
System.out.println(i);
Can you guess what will be the output ? Output is 0. Could anybody explain the reason !!

Hi,
this topic has been discussed around July 15, I just cna not find the link, if u have time, check it.
mick

[Lancy Mendonca]

Hi Manali
Here is what I think the answer is:
The operation i = i++ can be thought of as 2 atomic operations i = i and i = i + 1
When the first operation takes place the value of i = 0 is placed on the stack, when the second operation happens the value of i = 1 is placed on the stack. However in a stack is a LIFO list. So what comes out first is i = 1 and then i = 0. Thus i = 0 overwrites the previous value of i = 1
Hope this explaination helps.