e644. 处理Action事件

2024-08-22 04:31:31

Action events are fired by subclasses of AbstractButton and includes buttons, checkboxes, and menus.

    AbstractButton button = new JButton("OK");

    button.addActionListener(new MyActionListener());

    public class MyActionListener implements ActionListener {

        public void actionPerformed(ActionEvent evt) {

            // Determine which abstract button fired the event.

            AbstractButton button = (AbstractButton)evt.getSource();

        }

    }

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