This week's book giveaway is in the Jobs Discussion forum.
We're giving away four copies of Java Interview Guide and have Anthony DePalma on-line!
See this thread for details.
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Shift operator Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Java Interview Guide this week in the Jobs Discussion forum!
JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
Bookmark "Shift operator" Watch "Shift operator" New topic

Shift operator

satishind Reddy
Ranch Hand

Joined: Oct 17, 2000
Posts: 33
i find this question from mock exam.
what is the output displayed by the following programe?
class Question{
public static void main(String args[]){
int n = 7;
n <<= 3;<br /> n = n & n+1 | n+2 ^ n+3 ;<br /> n >>= 2;
can any one suggest fast way to calculate 'n' value.
I think this type of questions will take more time in exame. Is it possible to get this type questions in real exame.

Ranch Hand

Joined: Nov 22, 2008
Posts: 18944
Hi Satishind,
First, I can't believe we will have a so complex question at the exam (I'm attending it on Thursday) because operators precedence are difficult to memorise properly. It is always advised to use parentheses to make a code more explicit to the reader.
Anyway, the easiest way to work out the results of binary operations is to express the result in binary form.

Please tell me if this is still unclear.

[This message has been edited by Beno�t d'Oncieu (edited October 31, 2000).]
I agree. Here's the link:
subject: Shift operator
jQuery in Action, 3rd edition