用eclipse写一个爱心跳动代码

在Eclipse中编写一个简单的爱心（心形图案）跳动效果，通常涉及图形绘制和动画。这里以Java Swing为例，因为Eclipse支持Swing库的图形界面开发：

import javax.swing.*;
import java.awt.*;
import java.awt.geom.Path2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class HeartBouncer extends JFrame {
    private static final int SHAPE_SIZE = 50;
    private JPanel panel;
    private JLabel heartLabel;

    public HeartBounce() {
        setTitle("爱心跳动");
        setSize(400, 400);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        initUI();
    }

    private void initUI() {
        panel = new JPanel() {
            @Override
            protected void paintComponent(Graphics g) {
                super.paintComponent(g);
                drawHeart((int) (getHeight() / 2), SHAPE_SIZE, g);
            }
        };

        heartLabel = new JLabel(new ImageIcon(drawHeartIcon(SHAPE_SIZE)));
        add(panel, BorderLayout.CENTER);
        add(heartLabel, BorderLayout.NORTH);

        setLayout(new BorderLayout());
        pack();

        animateHeart();
    }

    private Image drawHeartIcon(int size) {
        return Toolkit.getDefaultToolkit().createImage(
                createImageBuffer(size, size)
        );
    }

    private BufferedImage createImageBuffer(int width, int height) {
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2d = image.createGraphics();
        g2d.setColor(Color.RED);
        g2d.setStroke(new BasicStroke(2));
        drawHeart(0, 0, g2d);
        g2d.dispose();
        return image;
    }

    private void drawHeart(int x, int y, Graphics g) {
        double[] controlPoints = {x + SHAPE_SIZE * 0.25, y + SHAPE_SIZE * 0.75,
                                 x - SHAPE_SIZE * 0.25, y + SHAPE_SIZE * 0.75,
                                 x, y + SHAPE_SIZE};
        Path2D.Double path = new Path2D.Double(Path2D.WIND_EVEN_ODD, true);
        path.moveTo(x, y);
        path.cubicTo(controlPoints[0], controlPoints[1], controlPoints[2], controlPoints[3]);
        path.lineTo(x, y);
        g.draw(path);
    }

    private void animateHeart() {
        Timer timer = new Timer(100, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                frame.setLocation(frame.getX(), frame.getY() + SHAPE_SIZE);
                if (frame.getLocationOnScreen().y >= getHeight()) {
                    frame.setLocation(0, 0);
                    animateHeart();
                }
            }
        });
        timer.start();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new HeartBounce());
    }
}