Java 代码绘制爱心图形 - 简单易懂的实现

以下是使用 Java 语言绘制爱心图形的代码：

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

public class HeartShape extends JPanel {
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setStroke(new BasicStroke(3));
        g2d.setColor(Color.RED);
        int x = getWidth() / 2;
        int y = getHeight() / 2;
        int radius = 50;
        int[] xPoints = {x - radius, x, x + radius, x};
        int[] yPoints = {y, y - radius, y, y + radius};
        g2d.fillOval(x - radius, y - radius, 2 * radius, 2 * radius);
        g2d.fillPolygon(xPoints, yPoints, 4);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame('Heart Shape');
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 300);
        frame.setLocationRelativeTo(null);
        frame.add(new HeartShape());
        frame.setVisible(true);
    }
}

运行后会出现一个红色的爱心图形，如下所示：