用JAVA画一个动态爱心

好的，以下是用Java代码实现动态爱心的示例：

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class DynamicHeart extends JPanel implements Runnable {

private int x = 250;
private int y = 350;
private int size = 150;
private int speed = 2;

public void run() {
while (true) {
if (x + size > getWidth() || x < 0) {
speed *= -1;
}
x += speed;
repaint();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}

protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(Color.RED);
g.fillOval(x, y - size / 2, size / 2, size / 2);
g.fillOval(x + size / 2, y - size / 2, size / 2, size / 2);
int[] xPoints = { x, x + size / 2, x };
int[] yPoints = { y - size / 4, y + size / 2, y };
g.fillPolygon(xPoints, yPoints, 3);
}

public static void main(String[] args) {
DynamicHeart heart = new DynamicHeart();
JFrame frame = new JFrame("Dynamic Heart");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(600, 600);
frame.add(heart);
frame.setVisible(true);
new Thread(heart).start();
}

}

当你运行这个程序时，会看到一个画有动态心形的窗口。