Java爱心代码

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

public class MovingHeart extends JFrame {

    private int x = 0;
    private int y = 100;
    private int size = 50;
    private Color color = Color.RED;

    public MovingHeart() {
        setTitle("动态爱心");
        setSize(400, 400);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setResizable(false);

        Timer timer = new Timer(50, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                x += 5;
                if (x > getWidth()) {
                    x = -size;
                }
                repaint();
            }
        });
        timer.start();
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setColor(color);
        g2d.fillOval(x, y, size, size);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new MovingHeart().setVisible(true);
            }
        });
    }
}