This code creates a new BufferedImage called "bufferedImageRotate" with its...

This code creates a new BufferedImage called "bufferedImageRotate" with its width and height dimensions swapped (i.e., the original image is rotated 90 degrees counterclockwise).

Then, a new Graphics2D object called "graphics2D" is created based on this new BufferedImage.

A value for theta is calculated in radians - specifically, it is 270 degrees converted to radians (i.e., 3 * pi / 2). This will be used later to rotate the image.

The graphics context is then translated to the center of the new image (which has different dimensions than the original), so that the rotation will occur around the center.

Finally, the graphics context is rotated by theta radians around the center point, and the original image is drawn onto the graphics context. This results in a rotated version of the original image being drawn onto the new BufferedImage.