gistfile1.txt

    public  BufferedImage rotate(BufferedImage image, int angleDegrees) {
        double angle = Math.toRadians(angleDegrees);
        double sin = Math.abs(Math.sin(angle)), cos = Math.abs(Math.cos(angle));
        int w = image.getWidth(), h = image.getHeight();
        int neww = (int)Math.floor(w*cos+h*sin), newh = (int) Math.floor(h * cos + w * sin);
        GraphicsConfiguration gc = getGraphicsConfiguration();
        BufferedImage result = gc.createCompatibleImage(neww, newh, Transparency.TRANSLUCENT);
        Graphics2D g = result.createGraphics();
        g.translate((neww - w) / 2, (newh - h) / 2);
        g.rotate(angle, w / 2, h / 2);
        g.drawRenderedImage(image, null);
        g.dispose();
        return result;
    }