a doubt

[ranjan sarkar]

class name
{public static void main(String[] args)
{int a=30;
a=a++;
System.out.println(a);
}
}

A:30

gives something unexpected output.

[Muhammad Saifuddin]

http://faq.javaranch.com/java/PostIncrementOperatorAndAssignment

[Larry Frissell]

That output is correct. See this recentthread

[ranjan sarkar]

but i need the perfect explanation.
please help me out

[Henry Wong]

Originally posted by RANJAN SARKAR:
but i need the perfect explanation.
please help me out

What is not "perfect" about the explanation? The links explains it to the full detail.

Henry

[fred rosenberger]

it would also help, generally speaking, if you would explain what YOU think the output should be. Many people here will look at that and think "30 is exactly what I'd expect the output to be."

at that point, they then have to try and guess what you think the output should be, which can lead to all kinds of trouble.

if you say "Well, i think THIS should be the output, and here's WHY", it's much easier for someone to reply with "well, you make a false assumption HERE, and your logic is wrong THERE".

[Ryan James]

I'd imagine he think the output should be 31, having set 'a' at 30 and then assuming the a++ will add one.