| Author |
Increment operator in assignment
|
Selvakumar Arumugam
Greenhorn
Joined: Dec 26, 2003
Posts: 2
|
|
Anybody please explain what is happening here?
--------------
int i =0;
i = i++;
i = i++;
i = i++;
System.out.println(i);
--------------
I was expecting i to be 3. But it's printing 0.
|
 |
Vicken Karaoghlanian
Ranch Hand
Joined: Jul 21, 2003
Posts: 522
|
|
|
Hi Selvakumar and welcome to the ranch, the post increment operator always returns its old value then increment it.
|
- Do not try and bend the spoon. That's impossible. Instead, only try to realize the truth. <br />- What truth? <br />- That there is no spoon!!!
|
|
Thomas De Vos
stable boy
Ranch Hand
Joined: Apr 12, 2003
Posts: 425
|
|
The reason is that the ++ operator is a postfix operator.
You can read x++ also as x = x = (x+1)
This means that the value of x in your case 0 is first assigned to x and then incremented. The value is incremented after the assignment operation.
The second time around the value of i will be still 0 and then assigned first and incremented etc.
|
Try your free <a href="http://www.javacertificate.com" target="_blank" rel="nofollow">SCJP 1.4</a> certification centre.<br />Try your free <a href="http://www.j2eecertificate.com" target="_blank" rel="nofollow">SCWCD</a> certification centre.<br />Try your free <a href="http://www.ejbcertificate.com" target="_blank" rel="nofollow">SCBCD</a> certification centre.<br />Try your <a href="http://www.webspherecertificate.com" target="_blank" rel="nofollow">Websphere (Test 285) </a> certification centre.<br />Try your <a href="http://www.j2mecertificate.com" target="_blank" rel="nofollow">SCMAD</a> certification centre. (New)<br /> <br /><a href="http://blogs.javacertificate.com" target="_blank" rel="nofollow">Java/J2EE Certification Blogging</a>
|
|
Selvakumar Arumugam
Greenhorn
Joined: Dec 26, 2003
Posts: 2
|
|
Vicken and Thomas Thanks for the reply. I am clear about it.
Thanks!
|
|
 |
|
|
subject: Increment operator in assignment
|
|
|
0
