Connect two circles with a line

Question

I\'m drawing two shapes (circles) in a JPanel and I need to connect them with a line. I was doing this by just getting the middle point of the circle and connecting each oth

Answer 1

Looking at the Screenshot, I think you need to find the top right corner of circle A, and then add half of the total distance to the bottom to y. Next, find the top right corner of circle B, and add half of the distance to the top left corner to x. Finally, make a line connecting the two, and render an arrow on the end of it.
Like this:

private int x1, y1, x2, y2 width = 20, height = 20;

private void example(Graphics g) {
    // Set x1, x2, y1, and y2 to something
    g.drawOval(x1, y1, width, height);
    g.drawOval(x2, y2, width, height);
    g.drawLine(x1, y1 + (height/2), x2 + (width/2), y2);
    g.drawImage(/*Image of an arrow*/, (x2 + width/2)-2, y2);
}