how to insert an image using swings in java?

[Ruchi Yadav]

hello .....i need to insert an image using swings in my project...but there is an error.....
the code is as shown below :-


import javax.swing.*;
import java.awt.*;
import java.io.*;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;



class ImageFrame extends JFrame
{
ImageFrame(String s)
{
setSize(800,600);
setTitle("imgtest");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
ImagePanel panel=new ImagePanel();
add(panel,BorderLayout.CENTER);
}
}
class ImagePanel extends JPanel
{
Image image;
ImagePanel()
{
try
{
image=ImageIO.read(new File("SunSet.jpg"));
}
catch(IOException e)
{
e.printStackTrace();
}


public void paintComponent(Graphics g)
{
g.drawImage(image,0,0,null);
}



}

}



public class image
{
/** Creates a new instance of image */
public image()
{
}
public static void main(String[] args)
{
ImageFrame frame=new ImageFrame("Image");
}

}

[adeeb alexander]

Ruchi please use code tags next time you post your code. The code below shows how to add image to the panel. May help you out.

    
ImageIcon icon;

java.net.URL imageURL = Login.class.getResource("login.jpg");
			if (imageURL != null) {
			    icon = new ImageIcon(imageURL);
			}

		
		panel = new JPanel()
		{
			protected void paintComponent(Graphics g)
			{
				Dimension d = getSize();
				g.drawImage(icon.getImage(), 0, 0, d.width, d.height, null);
 
				super.paintComponent(g);
			}
		};
		panel.setOpaque( false );
		panel.setPreferredSize( new Dimension(400, 400) );

You just override the JPanels paint method. The above code sets the image totally as the background. If your requirement is to set the image as just a icon, then you can use the JLabel, and the component to the panel.

[John Eipe]

You can either add the Image as a Label or as Background. Do you get any runtime errors?

Regards,
John Eipe

[Ruchi Yadav]

i dint got any kinda runtime error but my frame ws displayed without the picture and the error ws in paintComponent method as i mentioned it in my code...
well i'll try the newer method.......thanks

[Michael Dunn]

your error would be that you have paintComponent() inside of the ImagePanel()'s constructor.

even if you fix that, the image won't show unless you force a repaint (minimize then maximize or drag frame wider etc),
as you've made the frame visible before adding the imagePanel

[Ruchi Yadav]

hey adeeb i tried your method........but its unable to find symbol Login....
would you please tell me what's the package of Login?