public void okButton_actionPerformed(ActionEvent e) {

        String script = null;
        String output = null;
        String comparison = null;

        if(scriptFileChooser.isFileNameChanged() || !scriptFileChooser.getFileName().equals("")) {
            script = scriptFileChooser.getFileName();
            scriptFileChooser.setCurrentFileName(script);
            scriptFileChooser.showCurrentFileName();
        }

        if(outputFileChooser.isFileNameChanged() || !outputFileChooser.getFileName().equals("") ) {
            output = outputFileChooser.getFileName();
            outputFileChooser.setCurrentFileName(output);
            outputFileChooser.showCurrentFileName();
        }

        if(comparisonFileChooser.isFileNameChanged() || !comparisonFileChooser.getFileName().equals("")) {
            comparison = comparisonFileChooser.getFileName();
            comparisonFileChooser.setCurrentFileName(comparison);
            comparisonFileChooser.showCurrentFileName();
        }
        if(!(script == null && output == null && comparison == null)) {
            notifyListeners(script,output,comparison);
        }
        setVisible(false);
    }