Matcher and compliler problem

[sharon daze]

Hello all ,

while matching any string using matcher and compiler why find method always gets to the next token which do not exist in the macther argument.

See following code

  
package javaapplication1;

import java.util.regex.*;

/**
 *
 * @author Admin
 */
public class Example5 {
public static void main(String[] args)
{
    Pattern p = Pattern.compile("\\d*");
    Matcher m = p.matcher("ab34ef88f");
    boolean b= false;
    
    while(b = m.find())
    {
        System.out.println(m.start() + " " +m.group());
                
    }  
    
}
  

This code produces output like :
0
1
2 34
4
5
6 88
8
9

why i get 9 as output there no element at 9th position ?


Thanks

[Paul Stat]

lookup greedy quantifiers

also, try splitting the output over two lines

System.out.println("Start pos: " + m.start());
System.out.println("Matched: " + m.group());

that should give you some clues

[Mumtaz Khan]

check out this, it should help you understand why you are getting 9 as output.
http://faq.javaranch.com/java/ScjpFaq#kb-regexp