Picture Woes

[Atrus Greyor]

How can you put a picture into a frame? I have tried the ImageIcon but it doesn't want to work for me?

Here is my code that SHOULD display a picture but it does not?

import javax.swing.*;
import java.awt.*;
 
class ShowPicture
{
public static void main(String args[])
{
Frame frame = new Frame();
ImageIcon icon = new ImageIcon("chainlink.gif");
JLabel label = new JLabel(icon);
frame.add(label);
frame.pack();
frame.show();
}
}  

If anyone is able to help me it would be greatly apprecited!

[Craig Wood]

You have to choose between AWT and Swing. It is generally recommended to not mix them. The ImageIcon and JLabel classes are both in the javax.swing package (see api).

If you choose AWT then this is one way to show an image.

import java.awt.*;
import java.awt.event.*;
import java.net.*;
 
public class ImagesInAWT
{
    public static void main(String[] args)
    {
        AWTImageComponent imageComponent = new AWTImageComponent();
        ScrollPane scrollPane = new ScrollPane();
        scrollPane.add(imageComponent);
        Frame f = new Frame("Images In AWT");
        f.addWindowListener(new WindowAdapter()
        {
            public void windowClosing(WindowEvent e)
            {
                System.exit(0);
            }
        });
        f.add(scrollPane);
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }
}
 
class AWTImageComponent extends Panel
{
    Image image;
 
    public AWTImageComponent()
    {
        loadImage();
    }
 
    public void paint(Graphics g)
    {
        super.paint(g);
        int w = getWidth();
        int h = getHeight();
        int imageWidth = image.getWidth(this);
        int imageHeight = image.getHeight(this);
        int x = (w - imageWidth)/2;
        int y = (h - imageHeight)/2;
        g.drawImage(image, x, y, this);
    }
 
    public Dimension getPreferredSize()
    {
        return new Dimension(image.getWidth(this), image.getHeight(this));
    }
 
    private void loadImage()
    {
        String fileName = "images/barnowl.jpg";
        Toolkit toolkit = Toolkit.getDefaultToolkit();
        MediaTracker tracker = new MediaTracker(this);
        URL url = getClass().getResource(fileName);
        image = toolkit.getImage(url);
        tracker.addImage(image, 0);
        try
        {
            tracker.waitForID(0);
        }
        catch(InterruptedException ie)
        {
            System.out.println("interrupt: " + ie.getMessage());
        }
    }
}