Untitled

## error

 

Grey.java:11: actionPerformed(java.awt.event.ActionEvent) in MyButton cannot implement actionPerformed(java.awt.event.ActionEvent) in java.awt.event.ActionListener; attempting to assign weaker access privileges; was public

        void actionPerformed(ActionEvent e)

             ^

1 error

 

## code

 

import java.awt.event.*;

import javax.swing.*;

 

class MyButton extends JButton implements ActionListener

{

        MyButton(String s) {

                super(s);

                addActionListener(this);

        }

 

        void actionPerformed(ActionEvent e)

        {

                setEnabled(false);

        }

}

 

public class Grey

{

        public static void main(String[] args)

        {

                JFrame frame    = new JFrame("Greyed Out");

                MyButton btn    = new MyButton("Grey me out bitch");

 

                frame.getContentPane().add(btn);

                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                frame.setSize(200, 100);

                frame.setVisible(true);

        }

}