using classes in applets

[Prosper]

Hello


can I use classes in applets?

it doesn't return an error but the called class
doesn't do anything...


thx!

 

[Joona I Palaste]

Hello

can I use classes in applets?

Of course you can. Applets would be a little pointless otherwise.

it doesn't return an error but the called class
doesn't do anything...

You have a bug on line 42 of Foobar.java.

 

[Andrew Thompson]

Prosper wrote:
...

can I use classes in applets?
Yes.

it ..

IE6 on XP?, Lynx on '95?,
Moz1.4?, Safari? ..your dog?

..doesn't return an error but the called class
doesn't do anything...

Wild guess. You are using
IE6 on a Win variant?

If so, have a look at this..
http://www.physci.org/codes/java/plugin.jsp

...and test your browser here.
http://www.physci.org/codes/jre.jsp

 

[Prosper]

Prosper wrote:
..



IE6 on XP?, Lynx on '95?,
Moz1.4?, Safari? ..your dog?

I'm using Java 1.4.2
Netbeans editor with Applet Viewer for debug

testing under Firebird 0.8 and IE 6 SP1

 

[Andrew Thompson]

Prosper wrote:
(class not found)

....
I'm using Java 1.4.2
Netbeans editor with Applet Viewer for debug

testing under Firebird 0.8 and IE 6 SP1

How about an URL?
http://www.physci.org/codes/sscce.jsp
The applet with a link to the code.

I could spend more time answering
your question and pondering the
information you left out, but instead
I won't..

 

[Prosper]

ok, sorry

here is the (trimmed) code that doesn't work.

I want to see the buttons and labels created in
MenuUI in my applet window (QbusMenu).


// QbusMenu
import java.net.*;
import javax.swing.*;
import java.awt.*;

public class QbusMenu extends JApplet {
MenuUI menuUI;

public void init(){
try {
System.out.println("INIT1");
menuUI = new MenuUI();
this.getContentPane().setLayout( new
BorderLayout() );

this.getContentPane().add(menuUI.getThePanel() );

} catch (Exception e) {
System.out.println(e.getMessage());
}

}

}

// the called class MenuUI
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class MenuUI { //javax.swing.JFrame {
protected JLabel titleLabel = new JLabel("TEST");
protected JButton panelButtons = new JButton();
protected JButton menuButtons = new JButton();
private JPanel thisUI = new JPanel();


public void MenuUI() {
System.out.println("INIT2");
MenuUI("QBUS", 3, 3, 1, 8);
}


public void MenuUI(String title, int
panelButtonRowCount, int panelButtonColCount, int
menuButtonRowCount, int menuButtonColCount) {
// arguments aren't used for this example

try{
System.out.println("INIT2");

thisUI.setLayout( new BorderLayout() );

thisUI.add(titleLabel, BorderLayout.NORTH);
thisUI.add(panelButtons,
BorderLayout.CENTER);
thisUI.add(menuButtons, BorderLayout.SOUTH);

// panel end

thisUI.setSize( 240, 240);
} catch (Exception e)
{}
}

public JPanel getThePanel() {
return thisUI;
}

public void init() {
System.out.println("INIT");
}

}

 

[Andrew Thompson]

ok, sorry

(shrugs) sure..

here is the (trimmed) code that doesn't work.

Did you actually _read_
http://www.physci.org/codes/sscce.jsp

Quick Quiz: What do the 'SC' in
S_SC_CE mean?

You should be able to reproduce
this error in around 20 lines of code.

 

[Prosper]

okay, I trimmed even more:

// QbusMenu.java
import javax.swing.*;
import java.awt.*;

public class QbusMenu extends JApplet {
MenuUI menuUI;

public void init(){
menuUI = new MenuUI();
this.getContentPane().add(menuUI.getThePanel() );
}

}


//MenuUI.java
import javax.swing.*;
import java.awt.*;

public class MenuUI {
JPanel thisUI = new JPanel();

public void MenuUI() {
thisUI.setLayout( new BorderLayout() );
thisUI.add(new JButton(),
BorderLayout.NORTH);
}

public JPanel getThePanel() {
return thisUI;
}
}

 

[Ryan Stewart]

okay, I trimmed even more:

// QbusMenu.java
import javax.swing.*;
import java.awt.*;

public class QbusMenu extends JApplet {
MenuUI menuUI;

public void init(){
menuUI = new MenuUI();
this.getContentPane().add(menuUI.getThePanel() );
}

}


//MenuUI.java
import javax.swing.*;
import java.awt.*;

public class MenuUI {
JPanel thisUI = new JPanel();

public void MenuUI() {
thisUI.setLayout( new BorderLayout() );
thisUI.add(new JButton(),
BorderLayout.NORTH);
}

public JPanel getThePanel() {
return thisUI;
}
}

Very simply, your button isn't being added because you never call the method
to do so. Yes, that's a method, not a constructor. Remove the return type.

 

[Prosper]

"Prosper" <[email protected]> wrote in message

Very simply, your button isn't being added because you never call the method
to do so. Yes, that's a method, not a constructor. Remove the return type.

OMG

damn myself

didn't program for a whole time and Java is new to me

thx alot...