private class MyCanvas extends JComponent {
        public Square[] array;
        public void paint(Graphics g) {
            for (int i = 0; i < array.length; i++) {
                g.drawRect(array[i].x, array[i].y, array[i].length, array[i].length);
            }
        }
    }

    /**
     * @param args
     */
    public static void main(String[] args) {
        Assignment5 ass5 = new Assignment5();
        Square[] squares = ass5.solveSquare(0, 0, 13, 13, true);

        JFrame window = new JFrame();
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        window.setBounds(30, 30, 300, 300);
        MyCanvas canvas = new MyCanvas();
        canvas.array = squares;
        window.getContentPane().add(canvas);
        window.setVisible(true);
    }