JOptionPane InputMismatchException

Question

i am building a simple chat application and i'm thinking to set the server address and port through JOptionPane, what i want to do is to check that the user is not entering letters in when setting up the port number,

int port=Integer.parseInt(JOptionPane.showInputDialog("Please insert the default port!");

i tried to handle it with a try/catch block but it didn't worked, any suggestions?

What do you mean by "i tried to handle it with a try/catch block but it didn't work"? — BackSlash, Apr 16 '14 at 20:35
it showed an error, however i just fixed it, thanks anyway :) instead of inputmismatchexception it needs numberformat exception — xhulio, Apr 16 '14 at 20:39

Abu Sulaiman · Accepted Answer · 2014-04-17T11:43:27.260

1

NumberFormatException is apparently the answer, so now this question will not show up as unanswered.

try{
    int port=Integer.parseInt(JOptionPane.showInputDialog("Please insert the default port!");
}catch(NumberFormatException e){
   //handle error
}

edited Apr 17 '14 at 11:43

answered Apr 16 '14 at 20:59

Abu Sulaiman

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you know of any way to make the JOptionPane show up until you put the right result?, i mean if you put a letter, prompt an error message and than reenter the input again? – xhulio Apr 16 '14 at 21:05
1

I have used DocumentFilter for this. It works very well. Here is a link to an example:http://stackoverflow.com/questions/11093326/restricting-jtextfield-input-to-integers – Abu Sulaiman Apr 16 '14 at 23:11

JOptionPane InputMismatchException

1 Answers1