Error Message

lad12

FrameWithClose is not abstract and does not override abstract method windowOpened(java.awt.event.WindowEvent) in java.awt.eventWindowListener

class FrameWithClose extends Frame implements WindowListener


Anyone tell me how to fix the problem

jessy

post some more of your code.

Merrion

You must add an override for the abstract method windowOpened in your FrameWithClose class...

lad12

import java.awt.*;
import java.awt.event.*;
class FrameWithClose extends Frame implements WindowListener
{
public FrameWithClose(String title)
{
super(title);
setBackground(Color.white);
addWindowListener(this);
}

public void windowClosing(WindowEvent e)
{
System.exit(0);
}

public void windowClosed(WindowEvent e)
{
}
}

lad12

You must add an override for the abstract method windowOpened in your FrameWithClose class...

do you mean this

public void windowOpened(WindowEvent e)
{
}

seamus

lad12 wrote:

do you mean this

public void windowOpened(WindowEvent e)
{
}

That's the one.

lad12

Tried that already and its still the same

madramor

any reason why your not using JFrame
you should do this

import java.awt.Color;
import java.awt.Frame;
import java.awt.event.WindowListener;
import java.awt.event.WindowEvent;

public class FrameWithClose extends Frame implements WindowListener{
    
    public FrameWithClose(String title) {
        super(title);
        setBackground(Color.white);
        addWindowListener(this);
    }    
    public void windowActivated(WindowEvent e) {
    }    
    public void windowClosed(WindowEvent e) {
    }    
    public void windowClosing(WindowEvent e) {
         System.exit(0);
    }    
    public void windowDeactivated(WindowEvent e) {
    }    
    public void windowDeiconified(WindowEvent e) {
    }    
    public void windowIconified(WindowEvent e) {
    }    
    public void windowOpened(WindowEvent e) {
    }    
}

GreeBo

lad12 wrote:

Tried that already and its still the same

Was that a snippet or your entire class?

you say your class implements WindowListener but you havent implemented half of these methods

* void windowActivated(WindowEvent e)
void windowClosed(WindowEvent e)
void windowClosing(WindowEvent e)
* void windowDeactivated(WindowEvent e)
* void windowDeiconified(WindowEvent e)
* void windowIconified(WindowEvent e)
* void windowOpened(WindowEvent e)

WindowListener Interface

If you declare that your class implements an interface and your class is not abstract then it needs to at least declare each method of that interface.