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BOOK: Beginning Java 2, JDK 5 Edition
This is the forum to discuss the Wrox book Ivor Horton's Beginning Java 2, JDK 5 Edition by Ivor Horton; ISBN: 9780764568749
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Old August 3rd, 2005, 08:50 PM
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Default losing the leading zero in binary values

Hi all,

This is my first posting, think it’s great to have a community based around a book - really helpful. I’m currently creating some examples of bitwise operations from p64, and I’ve just noticed that I’m losing the leadnig zero of a binary value ( e.g.

decimal 1 (expecting to see bin of 0001) is manifesting as 1
decimal 16 (expecting to see bin of 00010000) is manifesting as 10000

below is an example if you want to compile it

import static java.lang.Integer.*;
public class BitExample {
  public static void main(String[] args) {
           toBinaryString(0x1) + '\n' +
           toBinaryString(0x16) + '\n' +
           toBinaryString(0x6a) + '\n' +


I can see I’m missing something, but not sure what. Can you help?
Many Thanks
Old September 20th, 2005, 03:53 PM
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Sorry, I have no answer for you.
But I see that in six weeks nobody answered you,
and as I just did my first post myself yesterday
that tells me I should not hope to get an answer
here. I guess you are not so enthusiastic anymore
about having a mailing list. Well, probably you don't
even see this message anymore....

Old September 22nd, 2005, 11:41 AM
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Yeah I'm a little surprised to get a response, but thanks! I got a speedy reply by using the various java forums run by sun. BTW, you can opt to 'watch' a posting & be emailed when (erm if) you get a reply.

Don't get me wrong ... I think the idea of running a forum focused around a book is FANTASTIC! ... but in reality you need (1) a lot of readers involved to make it worthwhile and (2) people considerably more experianced to answer the postings. Personally I'd be really up for more of this, but I fear I'm in a minority!!


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