NewBie Problem [Event Handling]

[manofspirit]

Hello All
I did a simple GUI application in JAVA and it works fine, But when i tried to add Event Handling in it using an inner class

it gives me following error
"buttonHandler is not abstract and doesnt override abstract methods myButtonHandler(java.awt.event.ActionEvent) in java.awt.event.ActionListner


overall code is

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class testGUI{



	//Inner Class
	public class buttonHandler implements ActionListner{
	
		public void myButtonHandler(ActionEvent event){
		JOptionPane.showMessageDialog(null, "Message Updated");	
	
	}



}

Please Help

[nspils]

To implement a method from the Interface, your implementation of ActionListener must implement the abstract method in the Interface. So your myButtonHandler instance of your ButtonHandler class must use actionPerformed as the method which executes the action you want to perform when a user pushes the button.

The signature of actionPerformed is:

void actionPerformed(ActionEvent e)

So the method should be re-written:

public void actionPerformed (ActionEvent event)
{
JOptionPane.showMessageDialog(null, "Message Updated");
}

[manofspirit]

Thanks, It works Now

But now I got a new problem

public void actionPerformed (ActionEvent event)
{
     if(event.getSource() == myButton){
          JOptionPane.showMessageDialog(null, "Message Updated");
     }
}

my inner class is unable to identify the myButton from the main class, What to do?

Thanks in advance

[Razee Marikar]

Declare the button as a class level variable, not in main.

[manofspirit]

Thanks, It starts to work