advanced java tutorial for beginners : Image Applet (Bengali) смотреть онлайн

Advanced java tutorial for beginners : Image Applet (Bengali).
Applet is mostly used in games and animation. For this purpose image is required to be displayed. The java.awt.Graphics class provide a method drawImage() to display the image.
How to get the object of Image:
The java.applet.Applet class provides getImage() method that returns the object of Image. Syntax:
public Image getImage(URL u, String image){}
Other required methods of Applet class to display image:
public URL getDocumentBase(): is used to return the URL of the document in which applet is embedded.
public URL getCodeBase(): is used to return the base URL.

Program:
import java.applet.Applet;
import java.awt.Graphics;
import java.awt.Image;

public class DisplayImage2 extends Applet
{
Image img1, img2;

public void init(){
img1 = getImage(getDocumentBase(), "image1.jpg"); //getParameter("image1.jpg"));
img2 = getImage(getDocumentBase(),"image2.jpg"); // getParameter("image2.jpg"));
}

public void paint(Graphics g){
g.drawImage(img1, 0,0,this);
g.drawImage(img2, 120,120,this);
}
}

In the above example, drawImage() method of Graphics class is used to display the image. The 4th argument of drawImage() method of is ImageObserver object. The Component class implements ImageObserver interface. So current class object would also be treated as ImageObserver because Applet class indirectly extends the Component class.

This program may help you understand java applet tutorial in live online class in bangla.