ImageIcon.getImageObserver() has the following syntax.
public ImageObserver getImageObserver()
In the following code shows how to use ImageIcon.getImageObserver() method.
import javax.swing.ImageIcon; // w ww .jav a2 s . c o m public class Main { public static void main(String[] argv) throws Exception { ImageIcon icon = new ImageIcon("image.gif"); icon.setDescription("Description of Image"); System.out.println(icon.getImageObserver()); } }