如何在java中延迟正在进行的绘制

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

public class DelayedDrawingExample extends JPanel {
    private Timer timer;

    public DelayedDrawingExample() {
        timer = new Timer(1000, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                repaint(); // 触发重绘
            }
        });
        timer.start();
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        // 进行绘制操作
        g.setColor(Color.RED);
        g.fillRect(50, 50, 100, 100);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Delayed Drawing Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 300);

        DelayedDrawingExample panel = new DelayedDrawingExample();
        frame.add(panel);

        frame.setVisible(true);
    }
}