Chapter 6.8, Problem 49STQ

Explanation of Solution

Modified program:

The below highlighted lines are the modified statements in the Listing 6.22.

//import necessary header files

import javax.swing.JApplet;

import javax.swing.JButton;

import javax.swing.ImageIcon;

import java.awt.Color;

import java.awt.Container;

import java.awt.FlowLayout;

import java.awt.Graphics;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

//define the class "ButtonIconDemo"

public class ButtonIconDemo extends JApplet implements ActionListener

{

    //define the method "init()"

    public void init( )

    {

        //create an object for "Container" class

        Container contentPane = getContentPane( );

        //set the background color

        contentPane.setBackground(Color.WHITE);

        //set the layout

        contentPane.setLayout(new FlowLayout( ));

        //create a button and give name to the button

        JButton sunnyButton = new JButton("Sunny");

        //Create object for "ImageIcon"

ImageIcon smileyFaceIcon = new ImageIcon("smiley.gif");

        //set the icon

        sunnyButton.setIcon(smileyFaceIcon);

        //add the button to the window

        contentPane.add(sunnyButton);

        //add the action to the button

        sunnyButton.addActionListener(this);

        //create a button and give name to the button

        JButton cloudyButton = new JButton("Cloudy");

        //Create object for "ImageIcon"

ImageIcon nastyFaceIcon = new ImageIcon("nasty.gif");

        //set the icon

        cloudyButton...