java动态爱心代码

Java动态爱心代码可以通过使用Java Swing库来实现。以下是一个简单的示例代码：

import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class DynamicHeart extends JPanel implements Runnable {
    private Thread animator;
    private double angle = 0;
    private double scale = 1;

    public DynamicHeart() {
        setBackground(Color.white);
        setPreferredSize(new Dimension(400, 400));
    }

    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D) g;
        g2d.translate(getWidth() / 2, getHeight() / 2);
        g2d.rotate(angle);
        g2d.scale(scale, scale);
        Path2D path = new Path2D.Double();
        path.moveTo(0, 0);
        path.curveTo(0, -50, -80, -50, -80, -20);
        path.curveTo(-80, -50, -160, -50, -160, -20);
        path.curveTo(-160, -50, -240, -50, -240, 0);
        path.curveTo(-240, 30, -160, 30, -160, 10);
        path.curveTo(-160, 30, -80, 30, -80, 10);
        path.curveTo(-80, 30, 0, 30, 0, 0);
        g2d.setColor(Color.red);
        g2d.fill(path);
    }

    public void addNotify() {
        super.addNotify();
        animator = new Thread(this);
        animator.start();
    }

    public void run() {
        while (true) {
            angle += Math.PI / 100;
            scale = Math.abs(Math.sin(angle));
            repaint();
            try {
                Thread.sleep(10);
            } catch (InterruptedException ex) {
                ex.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Dynamic Heart");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().add(new DynamicHeart());
        frame.pack();
        frame.setVisible(true);
    }
}

这个代码使用了Java的Swing库来创建一个JPanel，并在其中绘制了一个心形图案。通过使用线程来控制心形图案的旋转和缩放，实现了动态效果。你可以将这个代码复制到你的Java开发环境中运行，看看效果如何。