Java で JFrame を画面の中央に正確に配置するにはどうすればよいですか?

import java.awt.*;

public class ScreenCenter {

    public static Point getScreenCenter(Component component) {
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension componentSize = component.getSize();

        int x = (screenSize.width - componentSize.width) / 2;
        int y = (screenSize.height - componentSize.height) / 2;

        return new Point(x, y);
    }

    public static void main(String[] args) {
        // Create a JFrame and set its size
        JFrame frame = new JFrame("Frame");
        frame.setSize(400, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Center the JFrame on the screen using the getScreenCenter method
        Point centerPoint = getScreenCenter(frame);
        frame.setLocation(centerPoint.x, centerPoint.y);

        // Display the JFrame
        frame.setVisible(true);
    }
}