Showing message after catching Exception

Question

Hi,
I'm having some troubles while trying to show a message after catching an Exception, the thing I want to do, is after they enter the values (Integer values in this case) if they didn't entered integer values shows a message that they input the wrong thing and then clear the fields.
Here's the code:
private void EnviarActionPerformed(java.awt.event.ActionEvent evt) throws Exception {                                      
        int dir=0, ranuras=0, mp=0, conjunto=0;
        String algoritmo=null;
        try {
            dir = Integer.parseInt(fieldDireccion.getText());       
            ranuras = Integer.parseInt(fieldRanura.getText());
            mp = Integer.parseInt(fieldMP.getText());
            conjunto = Integer.parseInt(fieldConjunto.getText());
            algoritmo = (String)(algoritmos.getSelectedItem());   
        } catch (Exception e) {
            JOptionPane.showmessageDialog(null,"Wrong values");
        }The error I have is: unreported exception java.lang.Exception; must be caught or declared to be thrown.
Thanks in advance

Answer 1

Ok well now I have another problem =S since that actionPerformed is made by netbeans itself I cant put it inside a "try".That is incorrect. You could create another method, which does all the work. Then in the original method do nothing but the try/catch and call that other method.
But it doesn't matter because logically the code is still incorrect. Which hints by me an others have suggested.
The method should not have a throws clause. That is the problem. If the code in the catch block can throw an exception then the solution to that is to put a try catch block around that code (inside the original catch.)