用java爱心跳动代码

以下是一个简单的Java爱心跳动代码，它使用了Java的Swing库来实现图形化界面和动画效果。代码中使用了数学函数来计算爱心的坐标，然后通过绘制图形来实现动画效果。

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;

public class HeartBeat extends JPanel implements ActionListener {
    private static final long serialVersionUID = 1L;
    private Timer timer;
    private int angle = 0;
    private int radius = 100;
    private int centerX = 250;
    private int centerY = 250;

    public HeartBeat() {
        timer = new Timer(10, this);
        timer.start();
    }

    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        g.setColor(Color.RED);
        Point p1 = getHeartPoint(angle);
        Point p2 = getHeartPoint(angle + 180);
        g.drawLine(centerX + p1.x, centerY - p1.y, centerX + p2.x, centerY - p2.y);
    }

    public Point getHeartPoint(int angle) {
        double t = (double) angle / 180 * Math.PI;
        double x = radius * (16 * Math.pow(Math.sin(t), 3));
        double y = -radius * (13 * Math.cos(t) - 5 * Math.cos(2 * t) - 2 * Math.cos(3 * t) - Math.cos(4 * t));
        return new Point((int) x, (int) y);
    }

    public void actionPerformed(ActionEvent e) {
        angle++;
        repaint();
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Java爱心跳动代码");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(500, 500);
        frame.setLocationRelativeTo(null);
        frame.setContentPane(new HeartBeat());
        frame.setVisible(true);
    }
}