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vahan - 21 May 2007 15:41 GMT

What does it print in out ? And why?

public class Simple {
static int i =2;

public static void main(String[] args){
i = (++i) / (++i);
System.out.println(" " + i);

}

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Chris Dollin - 21 May 2007 15:47 GMT

> What does it print in out ? And why?
>
[quoted text clipped - 6 lines]
>
> }

I smell homework.

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Lew - 21 May 2007 15:57 GMT

> What does it print in out ? And why?
>
[quoted text clipped - 6 lines]
>
> }

For the first question, compile and run the program and you will find out.

You could also read the Java Language Specification (JLS) for that
information, and it will tell you why.

<http://java.sun.com/docs/books/jls/third_edition/html/j3TOC.html>

Hint: Order of evaluation.
<http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#15.7>

As far as the prefix and postfix increment operators go:
<http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#15.14.2>
<http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#15.15.1>

From the tutorials:
<http://java.sun.com/docs/books/tutorial/java/nutsandbolts/op1.html>
<http://java.sun.com/docs/books/tutorial/java/nutsandbolts/expressions.html>

Learn to use the Sun website for tutorials and specifications.

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Lew

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vahan - 22 May 2007 06:28 GMT

> > What does it print in out ? And why?
>
[quoted text clipped - 29 lines]
> --
> Lew

Any way, many thanks to all

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Andrew Thompson - 22 May 2007 07:38 GMT

>> > What does it print in out ? And why?

(snip many links from Lew)
...

>...many thanks to all

Please don't forget to report back your conclusions
after reading the links given by Lew. I could guess
what it would print by eyeballing the code, but the
*explanation* was in the links.

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Andrew Thompson
http://www.athompson.info/andrew/

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