Java List双击事件实现方法

// 双击鼠标事件
MouseListener mouseListener = new MouseAdapter() {
   public void mouseClicked(MouseEvent mouseEvent) {
 List theList = (List) mouseEvent.getSource();
 if (mouseEvent.getClickCount() == 2) {
   int index = theList.getSelectedIndex();
   if (index >= 0) {
  String s = theList.getItem(index);
   }
 }
   }
};
lstRoster.addMouseListener(mouseListener);