Tutorials : Step by Step :
Chapter 1 :

Displaying Images

import java.awt.*;
import java.applet.*;
// These classes are for Url's.
import java.net.*;

public class ImageExample extends Applet
{
 // Your image name;
     Image my_gif;

 // The applet base URL
     URL base;

 // This object will allow you to control loading
     MediaTracker mt;

     public void init() 
     {
 
  // initialize the MediaTracker
          mt = new MediaTracker(this);
 
  // The try-catch is necessary when the URL isn't valid
  // Of course this one is valid, since it is generated by
  // Java itself.
 
         try {
   // getDocumentbase gets the applet path.
               base = getDocumentBase();
         }
         catch (Exception e) {}
 
  // Here we load the image.
  // Only Gif and JPG are allowed. Transparent gif also.
          my_gif = getImage(base,"imageExample.gif");
 
  // tell the MediaTracker to keep an eye on this image, and give it ID 1;
          mt.addImage(my_gif,1);

  // now tell the mediaTracker to stop the applet execution
  // (in this example don't paint) until the images are fully loaded.
  // must be in a try catch block.
 
         try {
               mt.waitForAll();
          }
          catch (InterruptedException  e) {}
 
  // when the applet gets here then the images is loaded.
 
     }

     public void paint(Graphics g) 
     {
  // now we are going to draw the gif on the screen
  // (image name,x,y,observer);
 
          g.drawImage(my_gif,20,20,this);

  // you can resize the image easily
 
          g.drawImage(my_gif,20,140,30,40,this);
 

     }

}

// That's all. Images can also be drawn without the mediaTracker but then
// the screen will flicker.
// a base URL variable is also not necessary but when you have lots of images to load
// then it's shorter to type.

// Next is the basic GUI (Graphical User Interface) components.

Next...

How to Add Java Applets to Your Site

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