java swing how to add action listeners for multiple buttons

JButton addButton = new JButton( new AbstractAction("add") {
    @Override
    public void actionPerformed( ActionEvent e ) {
        // add Action
    }
});

JButton substractButton = new JButton( new AbstractAction("substract") { 
    @Override
    public void actionPerformed( ActionEvent e ) {
        // substract Action
    }
});