Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.gui > #3197

Re: Need help to convert

Show all headers | View raw

  To: comp.lang.java.gui
Katak wrote:
> I wrote these codes below in Java and theres some problems passing the
> string to do the conversion. Can anyone help me out? The c++ codes are
> on the first post above. Thanks.
> 
> import java.util.Scanner;
> public class BinaryToDecimal {
> 
> 
> 	public static void main(String[] args) {
> 
> 		   String bin;
> 		       result += (( bin[i] - 48)*(cubed));

Review the Javadocs for String, the type of 'bin', at
<http://java.sun.com/javase/6/docs/api/java/lang/String.html>

Strings are not arrays, and cannot use the square-bracket notation ([]) to 
represent parts of a String.  A String is an object that must be accessed 
through its defined methods.

It seems that you are looking for String#charAt()
<http://java.sun.com/javase/6/docs/api/java/lang/String.html#charAt(int)>
but be aware that character encoding can differ, and '48' might not be the 
magic number you're looking for.  Also, what if the /i/th character is not a 
digit?

P.S., please use less aggressive indentation for Usenet posts.  Up to four 
spaces (not TAB characters) per indent level is fine.  You can cut back on the 
blank lines, too.  Easier-to-read listings are easier to answer.

-- 
Lew

---
 * Synchronet * The Whitehouse BBS --- whitehouse.hulds.com --- check it out free usenet!
--- Synchronet 3.15a-Win32 NewsLink 1.92
Time Warp of the Future BBS - telnet://time.synchro.net:24

Back to comp.lang.java.gui | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Re: Need help to convert "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
  Re: Need help to convert "tar" <tar@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000

csiph-web