在Java中如何在两个有时间延迟的图像之间切换？

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ImageSwitchPanel extends JPanel {
    private Image[] images;  // 图像数组
    private int currentIndex;  // 当前显示的图像索引

    public ImageSwitchPanel() {
        // 初始化图像数组和索引
        images = new Image[2];
        images[0] = loadImage("image1.jpg");  // 加载图像1
        images[1] = loadImage("image2.jpg");  // 加载图像2
        currentIndex = 0;

        // 创建定时器，每隔一定时间切换图像
        Timer timer = new Timer(2000, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                currentIndex = (currentIndex + 1) % images.length;  // 更新索引
                repaint();  // 触发重绘
            }
        });
        timer.start();  // 启动定时器
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        // 绘制当前显示的图像
        g.drawImage(images[currentIndex], 0, 0, getWidth(), getHeight(), this);
    }

    private Image loadImage(String filename) {
        // 加载图像的代码，略
        return null;
    }
}

import javax.swing.*;

public class MainFrame extends JFrame {
    public MainFrame() {
        setTitle("Image Switch");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(800, 600);

        ImageSwitchPanel imageSwitchPanel = new ImageSwitchPanel();
        add(imageSwitchPanel);

        setVisible(true);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new MainFrame();
            }
        });
    }
}