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Applet Loading Failed........
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I'm trying to make a PhotoAlbum using JApplets.I write a Java code for it and then compile to make a .class file and then made a html file in the same directory which have .class file.But while running it on Web -Browser it doesn't load the applet and shows that Applet doesn't loaded.Help me to figure it out.
Here's my Java code------
import java.awt.*;
import java.applet.*;
import java.applet.Applet;
import java.awt.event.*;
import java.awt.image.*;
public class PhotoAlbum extends Applet implements ActionListener
{
Button
previous = new Button("Previous"),
first = new Button("First"),
last = new Button("Last"),
next = new Button("Next");
Canvas
imageCanvas = new Canvas();
final int total = 6;
int i = 0;
Image Pictures[] = new Image[total]; //Picture Array to store pictures.....
@Override
public void init()
{
makeGui();
for (int p=0; p < total; p++)
{
Pictures[p] = getImage(getCodeBase(),"Katrina"+".JPEG"); // Katrina is the folder name of required pics which is also in the same directory having .class file.
prepareImage(Pictures[p], this);
}
}
private void displayImage(int n)
{
Graphics g = imageCanvas.getGraphics();
g.clearRect(10, 10, 700, 700);
g.drawImage(Pictures[n], 30, 10, this);
g.drawString("Image: "+(n+1)+"/"+total, 30, 500);
}
public void drawFirst()
{
displayImage(0);
}
public void drawLast()
{
displayImage(total-1);
}
public void drawPrevious()
{
i = i - 1;
if (i <= -1)
{
i = total-1;
}
displayImage(i);
}
public void drawNext()
{
i = i + 1;
if (i == total)
{
i = 0;
}
displayImage(i);
}
public void actionPerformed(ActionEvent e)
{
if (e.getSource() == previous)
drawPrevious();
else if (e.getSource() == first)
drawFirst();
else if (e.getSource() == last)
drawLast();
else if (e.getSource() == next)
drawNext();
}
@Override
public void paint(Graphics g)
{
drawFirst();
i = 0;
}
private void makeGui() {
setBackground(Color.black);
setForeground(Color.white);
setLayout(new BorderLayout());
Panel p1 = new Panel();
p1.add(previous);
p1.add(first);
p1.add(next);
p1.add(last);
add(BorderLayout.NORTH, p1);
add(BorderLayout.CENTER, imageCanvas);
previous.addActionListener(this);
first.addActionListener(this);
last.addActionListener(this);
next.addActionListener(this);
}
}
Here's my html file for the Applet:----
<html>
<head>
<title>Photo Album</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p align="center">Photo Album Applet</p>
<hr size="1" align="center">
<div align="center">
<applet code="PhotoAlbum.class" width="700" height="700">
<PARAM NAME="IMAGE1" VALUE="Katrina/kat1.JPEG">
<PARAM NAME="IMAGE2" VALUE="Katrina/kat2.JPEG">
<PARAM NAME="IMAGE3" VALUE="Katrina/kat3.JPEG">
<PARAM NAME="IMAGE4" VALUE="Katrina/kat4.JPEG">
<PARAM NAME="IMAGE5" VALUE="Katrina/kat5.JPEG">
</applet>
</div>
</body>
</html>
Plzz look through it.Thanx in advance........
Here's my Java code------
import java.awt.*;
import java.applet.*;
import java.applet.Applet;
import java.awt.event.*;
import java.awt.image.*;
public class PhotoAlbum extends Applet implements ActionListener
{
Button
previous = new Button("Previous"),
first = new Button("First"),
last = new Button("Last"),
next = new Button("Next");
Canvas
imageCanvas = new Canvas();
final int total = 6;
int i = 0;
Image Pictures[] = new Image[total]; //Picture Array to store pictures.....
@Override
public void init()
{
makeGui();
for (int p=0; p < total; p++)
{
Pictures[p] = getImage(getCodeBase(),"Katrina"+".JPEG"); // Katrina is the folder name of required pics which is also in the same directory having .class file.
prepareImage(Pictures[p], this);
}
}
private void displayImage(int n)
{
Graphics g = imageCanvas.getGraphics();
g.clearRect(10, 10, 700, 700);
g.drawImage(Pictures[n], 30, 10, this);
g.drawString("Image: "+(n+1)+"/"+total, 30, 500);
}
public void drawFirst()
{
displayImage(0);
}
public void drawLast()
{
displayImage(total-1);
}
public void drawPrevious()
{
i = i - 1;
if (i <= -1)
{
i = total-1;
}
displayImage(i);
}
public void drawNext()
{
i = i + 1;
if (i == total)
{
i = 0;
}
displayImage(i);
}
public void actionPerformed(ActionEvent e)
{
if (e.getSource() == previous)
drawPrevious();
else if (e.getSource() == first)
drawFirst();
else if (e.getSource() == last)
drawLast();
else if (e.getSource() == next)
drawNext();
}
@Override
public void paint(Graphics g)
{
drawFirst();
i = 0;
}
private void makeGui() {
setBackground(Color.black);
setForeground(Color.white);
setLayout(new BorderLayout());
Panel p1 = new Panel();
p1.add(previous);
p1.add(first);
p1.add(next);
p1.add(last);
add(BorderLayout.NORTH, p1);
add(BorderLayout.CENTER, imageCanvas);
previous.addActionListener(this);
first.addActionListener(this);
last.addActionListener(this);
next.addActionListener(this);
}
}
Here's my html file for the Applet:----
<html>
<head>
<title>Photo Album</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p align="center">Photo Album Applet</p>
<hr size="1" align="center">
<div align="center">
<applet code="PhotoAlbum.class" width="700" height="700">
<PARAM NAME="IMAGE1" VALUE="Katrina/kat1.JPEG">
<PARAM NAME="IMAGE2" VALUE="Katrina/kat2.JPEG">
<PARAM NAME="IMAGE3" VALUE="Katrina/kat3.JPEG">
<PARAM NAME="IMAGE4" VALUE="Katrina/kat4.JPEG">
<PARAM NAME="IMAGE5" VALUE="Katrina/kat5.JPEG">
</applet>
</div>
</body>
</html>
Plzz look through it.Thanx in advance........
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Join Date: Dec 2007
Posts: 1,678
Reputation: 
Solved Threads: 226
My JApplet skills are a little rusty. But this is what I would suggest. Have you tried to run a single applet as an example that just displays a message in the browser?
Take an example from a tutorial and see if it is displayed correctly.
Then remove what you don't need and try to display everything that you will need except from the pictures.
When you do the above try to add a single picture from a file.
Then try to add the pictures you want.
If you try to do all in once you will not be able to know what is the mistake you have made. But if you try it step by step and somewhere you get an error, you will know at which step is the error.
For example:
don't use: <PARAM NAME="IMAGE1" VALUE="Katrina/kat1.JPEG">
Try at first to hardcode the image in the JApplet class and when you manage to display it, then try to take it from the html.
In that way you will know if the reason why the image is not displayed is the way you get the file name from the html or the code you have in the applet for displaying it.
Take an example from a tutorial and see if it is displayed correctly.
Then remove what you don't need and try to display everything that you will need except from the pictures.
When you do the above try to add a single picture from a file.
Then try to add the pictures you want.
If you try to do all in once you will not be able to know what is the mistake you have made. But if you try it step by step and somewhere you get an error, you will know at which step is the error.
For example:
don't use: <PARAM NAME="IMAGE1" VALUE="Katrina/kat1.JPEG">
Try at first to hardcode the image in the JApplet class and when you manage to display it, then try to take it from the html.
In that way you will know if the reason why the image is not displayed is the way you get the file name from the html or the code you have in the applet for displaying it.
Last edited by javaAddict; Jun 4th, 2008 at 10:25 am.
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Join Date: May 2007
Posts: 4,483
Reputation:
Solved Threads: 515
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Originally Posted by funtoosh 
Plzz solve my problem.........
@JavaAddict-- look through it,plzzzzz
@Ezzaral--- Thanx for your suggestions dude.But I think we are here for not these type of stuffs.... If you can help then you are welcome otherwise please not post these type of stupid threads...
@JavaAddict-- I have tried to display the Applet in html file.....it works fine... now i will trying to do this one in steps....Thanx for your suggestions.....
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Join Date: May 2007
Posts: 4,483
Reputation:
Solved Threads: 515
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Originally Posted by funtoosh
@Ezzaral--- Thanx for your suggestions dude.But I think we are here for not these type of stuffs.... If you can help then you are welcome otherwise please not post these type of stupid threads...
Perhaps you should read them.
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