基于双精度(子像素精度)的Java绘制线

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

public class DoublePrecisionLineDrawing extends JPanel {
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D) g;
        g2.setStroke(new BasicStroke(2.0f));
        g2.drawLine(50, 50, 100, 100);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Double Precision Line Drawing");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);
        frame.add(new DoublePrecisionLineDrawing());
        frame.setVisible(true);
    }
}