APLLET NOT INITIALISED

Greenhorn

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posted 15 years ago

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I am on java2 and having done ''creating menu bar" and 'dialog boxes', I am held up at my first applet.
Here is the code I have written

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.*;
public class SampleDialog extends Dialog implements ActionListener
{
SampleDialog(Frame parent,String title)
{
super(parent,title,false);
setLayout(new FlowLayout());
setSize(300,200);
add(new Label("PRESS THIS BUTTON"));
Button b;
add(b=new Button("CANCEL"));
b.addActionListener(this);
}
public void actionPerformed(ActionEvent ae)
{
dispose();
}
public void paint(Graphics g)
{
g.drawString("THIS IS IN THE DIALOG BOX",10,70);
}
}
class MenuFrame extends Frame
{
String msg=" ";
MenuFrame(String title)
{
super(title);
MenuBar mbar=new MenuBar();
setMenuBar(mbar);
Menu file=new Menu("FILE");
MenuItem i1,i2,i3,i4,i5;
file.add(i1=new MenuItem("NEW"));
file.add(i2=new MenuItem("OPEN"));
file.add(i3=new MenuItem("CLOSE"));
file.add(i4=new MenuItem("-"));
file.add(i5=new MenuItem("QUIT"));
mbar.add(file);
Menu edit=new Menu("EDIT");
MenuItem i6,i7,i8;
edit.add(i6=new MenuItem("CUT"));
edit.add(i7=new MenuItem("COPY"));
edit.add(i8=new MenuItem("PASTE"));
mbar.add(edit);
MyMenuHandler handler=new MyMenuHandler(this);
i1.addActionListener(handler);
i2.addActionListener(handler);
i3.addActionListener(handler);
i4.addActionListener(handler);
i5.addActionListener(handler);
i6.addActionListener(handler);
i7.addActionListener(handler);
i8.addActionListener(handler);
MyWindowAdapter adapter=new MyWindowAdapter(this);
addWindowListener(adapter);
}
public void paint(Graphics g)
{
g.drawString(msg,10,200);
}
public class MyWindowAdapter extends WindowAdapter
{
MenuFrame menuFrame;
public MyWindowAdapter(MenuFrame menuFrame)
{
this.menuFrame=menuFrame;
}
public void windowClosing(WindowEvent we)
{
menuFrame.dispose();
}
}
public class MyMenuHandler implements ActionListener,ItemListener
{
MenuFrame menuFrame;
public MyMenuHandler(MenuFrame menuFrame)
{
this.menuFrame=menuFrame;
}
public void actionPerformed(ActionEvent ae)
{
String msg="YOU SELECTED";
String arg=(String)ae.getActionCommand();
if(arg.equals("NEW"))
{
msg+="New";
SampleDialog d=new SampleDialog(menuFrame,"NEW DIALOG BOX");
d.setVisible(true);
}
else if(arg.equals("OPEN"))
msg+="OPEN";
else if(arg.equals("CLOSE"))
msg+="CLOSE";
else if(arg.equals("QUIT"))
msg+="QUIT";
else if(arg.equals("CUT"))
msg+="CUT";
else if(arg.equals("COPY"))
msg+="COPY";
else if(arg.equals("PASTE"))
msg+="PASTE";
menuFrame.msg=msg;
menuFrame.repaint();
}
public void itemStateChanged(ItemEvent ie)
{
menuFrame.repaint();
}
}
public class DialogDemo extends Applet
{
MenuFrame f; 
public void init()
{
f=new MenuFrame("DIALOG DEMO");
int width=Integer.parseInt(getParameter("width"));
int height=Integer.parseInt(getParameter("height"));
setSize(width,height);
f.setSize(width,height);
f.setVisible(true);
}
public void start()
{
f.setVisible(true);
}
public void stop()
{
f.setVisible(false);
}
}
}

HTML CODE:

<html>
<body>
<applet code=SampleDialog.class width=300 height=300>
</applet>
</body>
</html>

when i run the code there is no error and when i make applet viewer to run..at the bottom left corner "start:applet not initialised" is displayed.

please anyone help me to solve this !!!

thank you in advance

Maneesh Godbole

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Posts: 11497

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posted 15 years ago

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"Hi friends",
Welcome to the Ranch

On your way in, looks like you missed out on our naming policy which says, display names should not be obviously fictitious. Could you please adjust your screen name to comply to the same? (just click on the "my profile" link at the top of this page).

To get the most out of the ranch, you might want to read http://faq.javaranch.com/java/HowToAskQuestionsOnJavaRanch which contains several tips such as using code tags. I have edited your original post and as you can see the code is much better formatted and easier to read.

I am also moving your post to a more appropriate forum. As you know, we have several forums here, and it is advisable to post in the proper forum.

[How to ask questions] [Donate a pint, save a life!] [Onff-turn it on!]

Maneesh Godbole

Bartender

Posts: 11497

I like...