java 实现图片的缩放、翻转

Java实现的图片翻转加缩放功能。用applet，实现了简单的动画效果，不过只能执行一遍，因为我巧用了repaint，哈哈！仅供参考：

  import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.JApplet;

public class ZoomImageTest extends JApplet {

 private static final long serialVersionUID = 2045383843321336797L;

 private int degree = 0;
 private int sW = 0;
 private int sH = 0;

 public ZoomImageTest() {
 }

 @Override
 public void paint(Graphics g) {
  sW += 2;
  sH += 2;
  degree += 2;

  BufferedImage img = null;
  try {
   BufferedImage sourceImage = ImageIO.read(this.getClass()
     .getResource("/login.jpg"));// 源图片

   int w = sourceImage.getWidth();
   int h = sourceImage.getHeight();

   Graphics2D g2 = (img = new BufferedImage(
     sourceImage.getWidth() / 10, sourceImage.getHeight() / 10,
     sourceImage.getColorModel().getTransparency()))
     .createGraphics();

   g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
     RenderingHints.VALUE_INTERPOLATION_BILINEAR);

   g2.drawImage(sourceImage, 0, 0, sourceImage.getWidth() / 10 - sW,
     sourceImage.getHeight() / 10 - sH, 0, 0, w, h, null);// 长和宽缩小10倍

   g2.dispose();

   BufferedImage trasImage = new BufferedImage(img.getWidth(), img
     .getHeight(), BufferedImage.TYPE_INT_RGB);

   Graphics2D gg2 = (trasImage = new BufferedImage(
     img.getWidth() + 100, img.getHeight() + 100, img
       .getColorModel().getTransparency()))
     .createGraphics();

   gg2.rotate(Math.toRadians(degree), img.getWidth() >> 1, img
     .getHeight() >> 1); // 旋转30度，一中心为旋转原点

   gg2.drawImage(img, 40, 20, null);
   gg2.dispose();

   g.drawImage(trasImage, 0, 0, null);

   g.dispose();

   repaint();
  } catch (IOException e) {
   e.printStackTrace();
  }
 }
}