I need a correction for this ...!!!!

Question

i came up with a recusive method but it has some inefficiency .. if i create an object of type int ,say 1234567 it will work properly, but if the int was say 1000000 or 1000001 it will return 1,0 and 1,1 ,respectively ... and here is the code .. i need a correction
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public class intComma
public static String putComma(int x)
String st = x+"" ;
int L = st.length() ;
if (L<= 3)
return st;
else
if (L%3 == 1)
return st.charAt(0)+","+putComma(Integer.parseInt(st.substring(1)));
else if (L%3 == 2)
return st.substring(0,2)+","+ putComma(Integer.parseInt(st.substring(2)));
else
return st.substring(0,3)+","+ putComma(Integer.parseInt(st.substring(3)));
public static void main(String[] args)
System.out.println(putComma(1234567));
System.out.println(putComma(1000000)); // here is the problem
System.out.println(putComma(1000001)); // here is the problem
}

Answer 1

you mean for this:
http://forum.java.sun.com/thread.jspa?threadID=784872