This week's book giveaway is in the Java 9 forum.
We're giving away four copies of Java 9 Modularity: Patterns and Practices for Developing Maintainable Applications and have Sander Mak & Paul Bakker on-line!
See this thread for details.
Win a copy of Java 9 Modularity: Patterns and Practices for Developing Maintainable Applications this week in the Java 9 forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic

imageobserver runtime error  RSS feed

 
vijay Krishnan
Greenhorn
Posts: 14
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

// This applet displays a single image twice,
// once at its normal size and once much wider.

public class ImageDisplayer extends JApplet {

static String imageFile = "D:/vijay_dreams/JavaExamples/pegeon.gif";

public void init() {
Image image = getImage(getCodeBase(), imageFile);
ImagePanel imagePanel = new ImagePanel(image);
getContentPane().add(imagePanel, BorderLayout.CENTER);
}
}

class ImagePanel extends JPanel {


Image image;

public ImagePanel(Image image) {

this.image = image;
}

public void paintComponent(Graphics g) {
super.paintComponent(g); // Paint background

// Draw image at its natural size first.
g.drawImage(image, 0, 0, this); //85x62 image

// Now draw the image scaled.
g.drawImage(image, 90, 0, 300, 62, this);
}
}

**************************************
The above pgm gives me and runtime error as,

/* Exception in thread "main" java.lang.NoSuchMethodError: main */

can anyone explain why?


Thanks and Regards,
viji.
 
Ulf Dittmer
Rancher
Posts: 42972
73
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
How are you trying to run this? Applets are referenced in an applet tag inside of an HTML page. They can't be run from the command line via the "java" command.

Note that applets do not have access to the local file system, so you will have to sign it, or fiddle with the local security policy.

If you want to run this applet as an application, check out the MainFrame class.
[ December 28, 2006: Message edited by: Ulf Dittmer ]
 
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!