double tempx =
 (secondX)*Math.cos(Math.toRadians(degree))+(secondY)*Math.sin(Math.toRadians(degree));
 double tempy =
(secondX)*Math.sin(Math.toRadians(degree))+(secondY)*Math.cos(Math.toRadians(degree));

        Line2D line = new Line2D.Double(start.width,
                                        start.height,
                                        tempx,
                                        tempy);
        secondX = tempx;
        secondY = tempy;
        return line;