Java制作'点/像素'在swing/awt中

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

public class SwingPixel {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Swing Pixel");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 300);
        frame.setVisible(true);

        Graphics graphics = frame.getGraphics();
        graphics.setColor(Color.BLUE);
        graphics.fillRect(100, 100, 1, 1);
    }
}

import java.awt.*;

public class AWTPixel {
    public static void main(String[] args) {
        Frame frame = new Frame("AWT Pixel");
        frame.setSize(300, 300);
        frame.setVisible(true);

        Graphics graphics = frame.getGraphics();
        graphics.setColor(Color.BLUE);
        graphics.fillRect(100, 100, 1, 1);
    }
}