GUI (JLabel) .JPEG not recegnized

momotaro

my code works fine with .GIF but not with .JPEG!!??
jdk.6.0_02
jre1.6.0_05

BigDaddyLH

Please explain. Even better, provide a SSCCE: http://mindprod.com/jgloss/sscce.html

momotaro

Quote:

Originally Posted by BigDaddyLH

Please explain. Even better, provide a SSCCE: http://mindprod.com/jgloss/sscce.html

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 ort java.awt.BorderLayout;

import javax.swing.ImageIcon;

import javax.swing.JLabel;

import javax.swing.JFrame;
 
public class LabelDemo

{

   public static void main( String args[] )

   {

      // Create a label with plain text

      JLabel northLabel = new JLabel( "North" );
 
      // create an icon from an image so we can put it on a JLabel

      ImageIcon labelIcon = new ImageIcon( "C:\\Users\\george bush\\Desktop\\ring_sat.GIF" );
 
      // create a label with an Icon instead of text

      JLabel centerLabel = new JLabel( labelIcon );
 
      // create another label with an Icon

      JLabel southLabel = new JLabel( labelIcon );
 
      // set the label to display text (as well as an icon)

      southLabel.setText( "South" );
 
       // create a frame to hold the labels

      JFrame application = new JFrame();
 
      application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
 
      // add the labels to the frame; the second argument specifies

      // where on the frame to add the label 

      application.add( northLabel, BorderLayout.NORTH );

      application.add( centerLabel, BorderLayout.CENTER );      

      application.add( southLabel, BorderLayout.SOUTH );      
 
      application.setSize( 300, 300); // set the size of the frame

      application.setVisible( true ); // show the frame

   } // end main

} // end class LabelDemo

Quote:

when I replace the GIF with the JPEG version the panel is empty but stillI candisplay text

BigDaddyLH

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 import java.awt.*;

import java.net.*;

import javax.swing.*;
 
public class ImageTest {

    public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable(){

            public void run() {

                try {

                    launchGUI();

                } catch (MalformedURLException e) {

                    e.printStackTrace();

                }

            }

        });

    }
 
    static void launchGUI() throws MalformedURLException {

        URL url = new URL("http://blogs.sun.com/jag/resource/JagHeadshot-small.jpg");

        JFrame f = new JFrame("ImageTest");

        f.getContentPane().add(new JLabel(new ImageIcon(url)));

        f.pack();

        f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

        f.setLocationRelativeTo(null);

        f.setVisible(true);

    }

}

ImageIcon has no problems displaying JPEG images. Perhaps your path is wrong or the file is corrupted.

momotaro

thank you nice picture !
but is there any difference if I use uper/lowercase?
does the size of the image matter?
PS: the code is pefectely working on netbeans but as weird as it can sounds it's not working using cmd

momotaro

sorry never mind its working now

momotaro

now I wanna resize the pic to the demesions of the frame? but can't find any method ??
plz help

BigDaddyLH

Quote:

Originally Posted by momotaro

now I wanna resize the pic to the demesions of the frame? but can't find any method ??
plz help

Did you look at the methods of Image?

momotaro

Quote:

Originally Posted by BigDaddyLH

Did you look at the methods of Image?

there is a method called:
paintIcon(component c, Graphics g, x, y);

but I don't know what c and g are or how to use them!

plz help

BigDaddyLH

Quote:

Originally Posted by momotaro

there is a method called:
paintIcon(component c, Graphics g, x, y);

but I don't know what c and g are or how to use them!

plz help

Try again: did you look at the methods of Image?

momotaro

Quote:

Originally Posted by BigDaddyLH

Try again: did you look at the methods of Image?

thx i think I can figure it out from here ! :)
I was looking at the wrong place

GUI (JLabel) .JPEG not recegnized

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