从JList Java Swing中删除元素

import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class JListExample extends JFrame {
    private JList<String> jList;
    private DefaultListModel<String> listModel;

    public JListExample() {
        setTitle("JList Example");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(300, 200);

        listModel = new DefaultListModel<>();
        listModel.addElement("Item 1");
        listModel.addElement("Item 2");
        listModel.addElement("Item 3");
        listModel.addElement("Item 4");

        jList = new JList<>(listModel);
        jList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

        JScrollPane scrollPane = new JScrollPane(jList);
        getContentPane().add(scrollPane, BorderLayout.CENTER);

        // 添加删除按钮
        JButton deleteButton = new JButton("删除");
        deleteButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int[] selectedIndices = jList.getSelectedIndices();
                for (int i = selectedIndices.length - 1; i >= 0; i--) {
                    listModel.removeElementAt(selectedIndices[i]);
                }
                jList.updateUI();
            }
        });
        getContentPane().add(deleteButton, BorderLayout.SOUTH);
    }

    public static void main(String[] args) {
        JListExample example = new JListExample();
        example.setVisible(true);
    }
}