Java rotates pictures specifies image size and flips horizontally

This example shows how Java can rotate pictures, specify image size, and flip horizontally for your reference. The details are as follows

package com.zeph.j2se.image;
 
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
 
public class ImageOperate {
 /**
 *  Rotate the picture to a specified angle 
 * 
 * @param bufferedimage
 *    target image 
 * @param degree
 *    Rotation angle 
 * @return
 */
 public static BufferedImage rotateImage(final BufferedImage bufferedimage,
 final int degree) {
 int w = bufferedimage.getWidth();
 int h = bufferedimage.getHeight();
 int type = bufferedimage.getColorModel().getTransparency();
 BufferedImage img;
 Graphics2D graphics2d;
 (graphics2d = (img = new BufferedImage(w, h, type)).createGraphics())
 .setRenderingHint(RenderingHints.KEY_INTERPOLATION,
  RenderingHints.VALUE_INTERPOLATION_BILINEAR);
 graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2);
 graphics2d.drawImage(bufferedimage, 0, 0, null);
 graphics2d.dispose();
 return img;
 }
 
 /**
 *  Change image to specified size 
 * 
 * @param bufferedimage
 *    target image 
 * @param w
 *    wide 
 * @param h
 *    high 
 * @return
 */
 public static BufferedImage resizeImage(final BufferedImage bufferedimage,
 final int w, final int h) {
 int type = bufferedimage.getColorModel().getTransparency();
 BufferedImage img;
 Graphics2D graphics2d;
 (graphics2d = (img = new BufferedImage(w, h, type)).createGraphics())
 .setRenderingHint(RenderingHints.KEY_INTERPOLATION,
  RenderingHints.VALUE_INTERPOLATION_BILINEAR);
 graphics2d.drawImage(bufferedimage, 0, 0, w, h, 0, 0,
 bufferedimage.getWidth(), bufferedimage.getHeight(), null);
 graphics2d.dispose();
 return img;
 }
 
 /**
 *  Flip image horizontally 
 * 
 * @param bufferedimage
 *    target image 
 * @return
 */
 public static BufferedImage flipImage(final BufferedImage bufferedimage) {
 int w = bufferedimage.getWidth();
 int h = bufferedimage.getHeight();
 BufferedImage img;
 Graphics2D graphics2d;
 (graphics2d = (img = new BufferedImage(w, h, bufferedimage
 .getColorModel().getTransparency())).createGraphics())
 .drawImage(bufferedimage, 0, 0, w, h, w, 0, 0, h, null);
 graphics2d.dispose();
 return img;
 }
}