如何獲取JList中的項目並將其刪除？

Question

我無法從JList中刪除一個項目。以下代碼已放在JButton上。

DefaultListModel model = (DefaultListModel) list1.getModel(); 

    int selectedIndex = list1.getSelectedIndex(); 
    if (selectedIndex != -1) 
    { 
    model.remove(selectedIndex); 
    } 

Answer 1

下面的代碼應該工作

JButton removeButton = new JButton("Remove Selected Element"); 
removeButton.addActionListener(new ActionListener() { 
    public void actionPerformed(ActionEvent event) { 
     int selectedIndex = list1.getSelectedIndex(); 
     if (selectedIndex != -1) { 
      model.remove(selectedIndex); 
     } else { 
      System.out.println("Nothing selected"); 
     } 
    } 
});