Checking for '.' character

Hi,
I am developing a pogram that calculates the factorial of a number. I need to check if the user has typed in a decimal point ,., in the text field( this is because real numbers do not have a factorial)
thankx in advance...

import java.io.*;
class MadBull {
public static void main(String[] args) throws IOException {
char[] exception = {'.','-'};
boolean flag=false;
          int axilleas=0;
          BufferedReader br;
br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter a digit");
String harris;
harris = br.readLine();
System.out.println(harris);
/*for(int i=0;i<harris.length();i++) {
               if(!Character.isDigit(harris.charAt(i))) {
if(flag==false)
                    if(((harris.charAt(0)==exception[1])) && (Character.isDigit(harris.charAt(1)))) {
axilleas++;
flag=true;
continue;
if(harris.charAt(i)==exception[0])
continue;
                    System.out.println("The info you have entered is not a number");
return;
System.out.println("The info you have entered is a " +( axilleas==0 ? "number" :"negative number"));
int i=0;
boolean milan=true;
     while(i<harris.length()) {
if((Character.isDigit(harris.charAt(i))) || (harris.charAt(i)==exception[0]) ||
          (harris.charAt(i)==exception[1]))
i++;
else {
System.out.println("The info is not a number");
milan = false;
break;
if(milan)
System.out.println("The info is a number");
}

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Last edited by blackout23 (2011-12-30 22:42:21)

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Error Message: FRM-30457: Warning: Maximum Length ignored for character-datatype subordinate mirror item %s.%s.
Error Cause:
A non-zero value was specified for the Maximum Length property in a subordinate mirror item whose Data Type is CHAR, ALPHA, or LONG. The Maximum Length property for such an item will be obtained from the master mirror item (the item specified by the Synchronize with Item property).
Action:
Specify the Maximum Length property in the master mirror item.

Check For Line Feed

hi again, im trying to check for a line feed character in an xml file.
im using the following code:
NodeList nodeList = ElementNode.getChildNodes();
for(int i = 0; i < nodeList.getLength(); i++) {
                    if(nodeList.item(i).getNodeValue().equals("\n")) {
                         System.out.println("Line Feed!");
                    }else
                         System.out.println(nodeList.item(i).getNodeName());
               }For some reason it never prints out "Line Feed!"
i used a transformer object to indent my xml like so,
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
               transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");so im wondering why am i not picking up the line feeds?
many thanks

ive found out what the line feed character is, but when im trying to read back in my xml,
i have it indented to 4 places (see above), this will no doubt add 4 white spaces to different parts of the xml, as well as new line characters.does it also add carriage returns?this is causing me problems reading back in.Is there any classes i can use to remove all the white spaces, new line characters etc.. so i can just get at the xml content (elements, CDATA, comments etc..)?
many thanks!

Checking for '.' character

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