modify the code below so that two separate liseteners classes are usd import jav

ID: 3763062 • Letter: M

Question

modify the code below so that two separate liseteners classes are usd

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class LeftRightPanel extends JPanel { private JButton left, right; private JLabel label; private JPanel buttonPanel;

public LeftRightPanel ()

{

left = new JButton ("Left");

right = new JButton ("Right");

ButtonListener listener = new ButtonListener();

left.addActionListener (listener);

right.addActionListener (listener);

label = new JLabel ("Push a button");

buttonPanel = new JPanel();

buttonPanel.setPreferredSize (new Dimension(200, 40));

buttonPanel.setBackground (Color.blue);

buttonPanel.add (left);

buttonPanel.add (right);

setPreferredSize (new Dimension(200, 80));

setBackground (Color.cyan);

add (label);

add (buttonPanel);

}

private class ButtonListener implements ActionListener

{

//--------------------------------------------------------------

// Determines which button was pressed and sets the label

// text accordingly.

//--------------------------------------------------------------

public void actionPerformed (ActionEvent event)

{

if (event.getSource() == left)

label.setText("Left");

else

label.setText("Right");

}

Explanation / Answer

package graphics;

//*******************************************************************

// Demonstrates the use of one listener for multiple buttons.

//*******************************************************************

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class LeftRightPanel extends JPanel {

private static final long serialVersionUID = 1L;

private JButton left, right;

private JLabel label;

private JPanel buttonPanel;

//----------------------------------------------------------------

// Constructor: Sets up the GUI.

//----------------------------------------------------------------

public LeftRightPanel () {