Best way to separate Business from Presentation Logic?

public class ExamplePanel extends JPanel implements ActionListener
{
    private JButton button;
    private ActionListener buttonListener;

    public ExamplePanel(ActionListener buttonListener)
    {
        this.button = new JButton("Do Something");
        this.buttonListener = buttonListener;
        this.button.addListener(this.buttonListener);
    }

    public void actionPerformed(ActionEvent e)
    {
        this.buttonListener.actionPerformed(e);
    }
}