private void newUserButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_newUserButtonActionPerformed
        // TODO add your handling code here:
        try{
        String result = (newNameField.getText() + ";" + newAddressField.getText() + ";" + newNumberField.getText()
                + ";" + newMailField.getText());
        WriteFile data = new WriteFile("storage.txt");
        data.writeToFile(result);
        }
        catch(IOException e){}
    }//GEN-LAST:event_newUserButtonActionPerformed