多个component使用同一个ActionListener,怎样判断哪个产生了action?

Question

public void actionPerformed(ActionEvent ae)
    {
        String action = ae.getActionCommand().toString();
        if (action.equals("Play"))
        {
            play();
        }
        if(action.equals("stop"))
        {
           ...
         }
         ...
    }

Answer 1

我试了一下,下面代码也可以.谢谢killme2008:)
public void actionPerformed(ActionEvent ae)
    {
        Object action = ae.getSource();
        if (action.equals("Play"))
        {
            play();
        }
        if(action.equals("stop"))
        {
           ...
         }
         ...
    }