java图形用户界面心形线图形设计

以下是使用Java Swing实现心形线图形的代码示例：

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

public class HeartShape extends JPanel {
    private static final long serialVersionUID = 1L;

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        int width = getWidth();
        int height = getHeight();
        int centerX = width / 2;
        int centerY = height / 2;
        int radius = Math.min(centerX, centerY) - 10;
        g.translate(centerX, centerY);
        g.scale(1, -1);
        int x, y;
        double angle = 0;
        double angleStep = Math.PI / 50;
        g.drawLine(-radius, 0, radius, 0);
        g.drawLine(0, -radius, 0, radius);
        for (int i = 0; i < 200; i++) {
            angle += angleStep;
            x = (int) Math.round(radius * Math.sin(angle) * Math.sin(angle) * Math.sin(angle));
            y = (int) Math.round(-radius * (13 * Math.cos(angle) - 5 * Math.cos(2 * angle) - 2 * Math.cos(3 * angle) - Math.cos(4 * angle)));
            g.drawLine(x, y, x, y);
        }
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Heart Shape");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 400);
        frame.setLocationRelativeTo(null);
        frame.add(new HeartShape());
        frame.setVisible(true);
    }
}

该程序创建了一个JFrame窗口，并在其中绘制了一个心形线图形。运行程序后，将显示一个窗口，其中包含绘制的图形。