Simple Java Question - How to test if a given string is numeric or not

[Former Member]

Hi Experts,

I have written one Java program. It fetches user ID from UME. The code is as below:

Iterator itr = role.getUserMembers(true);
while (itr.hasNext()) {
String uniqId = (String) itr.next();
IUser thisUser = myUserFactory.getUser(uniqId);
wdComponentAPI.getMessageManager().reportSuccess("here "+thisUser.getUid() );

Used ID is thisUser.getUid() . I have to find out all user IDs which are numeric.

Do we have any standard Java program (API) to find out whether thisUser.getUid() is numeric or not.

Regards,

Gary

[Former Member · Accepted solution]

Hi

Just try to parse this string to integer or long number and catch the NumberFormatException.

Somthing like:

 
try
{
   Integer.parseInt(userIdString);
}
catch(NumberFormatException e)
{
  //do sume thing when user id is not number
}

good luck