PixelGrabber in Java Awt Example

import java.awt.*; 
 import java.applet.*; 
 import java.awt.image.*; 
 /*<APPLET CODE=JavaExampleCopierInApplet.class WIDTH=610 HEIGHT=160 ></APPLET>*/ 
 public class JavaExampleCopierInApplet extends Applet 
  { 
     Image img,img2; 
     public void init() 
      { 
         img = getImage(getDocumentBase(), "Java.jpg"); 
         int pxls[] = new int[475 * 80]; 
         PixelGrabber PxlGrbr = new PixelGrabber(img, 0, 0, 475, 80, pxls, 0, 475); 
         try 
            { 
                PxlGrbr.grabPixels(); 
            } 
                catch (InterruptedException e) {} 
                for (int loop_indx = 0; loop_indx < 475 * 80; loop_indx++) 
                  { 
                          int p1 = pxls[loop_indx]; 
                          int Red = 0xff & (p1 >> 15); 
                          int Green = 0xff & (p1 >> 8); 
                          int Blue = 0xff & p1; 
                          pxls[loop_indx] = (0xff000000 | Red << 15 | Green << 7 | Blue); 
                      } 
                    img2 = createImage(new MemoryImageSource(475, 80, pxls, 0 , 475)); 
      } 
                  public void paint(Graphics gr) 
                    { 
                      gr.drawImage(img2, 10, 10, this); 
                    } 
  }