Java Swing - 如何检测JList中的项目的双击和三击

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JList;

public class Main {
  public static void main(String[] argv) throws Exception {
    String[] items = { "A", "B", "C", "D" };
    JList list = new JList(items);

    list.addMouseListener(new MouseAdapter() {
      public void mouseClicked(MouseEvent evt) {
        JList list = (JList) evt.getSource();
        if (evt.getClickCount() == 2) { // Double-click
          int index = list.locationToIndex(evt.getPoint());
        } else if (evt.getClickCount() == 3) { // Triple-click
          int index = list.locationToIndex(evt.getPoint());
        }
      }
    });
  }
}