Image losing quality when rotating

Question

I tried to do a rotation on my buffered image, however the image loses clarity whenever it tries to rotate the image, can someone help me:
public static BufferedImage rotateImage(BufferedImage image, double degrees) {
          /* assumes 0 <= degrees <= 90 */
          double radians = Math.toRadians(degrees);
          /* get width and height of image to be rotated */
          int width = image.getWidth();
          int height = image.getHeight();
          double w = width * Math.cos(radians);
          double z = width * Math.sin(radians);
          double x = height * Math.sin(radians);
          double y = height * Math.cos(radians);
          int rectWidth = (int) Math.ceil(w + x);
          int rectHeight = (int) Math.ceil(y + z);
          BufferedImage result = new BufferedImage(rectWidth, rectHeight,
                    BufferedImage.TYPE_4BYTE_ABGR);
          AffineTransform transform = new AffineTransform();
          transform.setToTranslation((rectWidth - width) / 2,
                    (rectHeight - height) / 2);
          transform.rotate(radians, width / 2, height / 2);
          Graphics2D g2 = (Graphics2D) result.getGraphics();
          g2.drawImage(image, transform, null);
          return result;
     }

Answer 1

Set RenderingHints on the Graphics2D object. Set
KEY_INTERPOLATION to VALUE_INTERPOLATION_BICUBIC
you could also set
KEY_ANTIALIASING to VALUE_ANTIALIAS_ON
but I don't think that effects rendering images, unless it antialiases their edges.