Modify the class below (SlotMachine)so that it simulates a slot machine. There are three spinners that display digits. When the button is clicked, the spinners should all start "spinning" (that is, they continuously increment the digit displayed, wrapping around to zero when necessary). Each subsequent time the button is clicked, one spinner should stop. After all three spinners stop, the game should display a message indicating whether the player won (all three digits are the same). If the user clicks the button again, the spinners all start spinning and the game continues.

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package slotmachine;

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class SlotMachine extends JFrame implements ActionListener {

public static void main(String[] args) {

new SlotMachine();

}

private JLabel spinner1; // Left digit display

private JLabel spinner2; // Middle digit display

private JLabel spinner3; // Right digit display

private int[] values; // Digit values

private JButton startStop; // Button to start or stop spinner(s)

// Constructor

public SlotMachine() {

super("Slots!");

values = new int[3];

makeFrame();

}

// Makes all three digits start spinning.

public void startSpinning() {

// WRITE ME!!!

}

// Makes one digit stop spinning.

// If all digits stop, displays a message if all three digits are

the same.

public void stopSpinning() {

// WRITE ME TOO!!!

}

// This method is called when Start/Stop button is clicked.

public void actionPerformed(ActionEvent e) {

if(startStop.getText().equals("START")) {

startStop.setText("STOP");

startSpinning();

} else {

stopSpinning();

}

}

// Builds the window and makes it appear!

private void makeFrame() {

setLayout(new BorderLayout(5, 5));

JPanel spinnerPanel = new JPanel(new GridLayout(1, 3, 5,

5));

spinner1 = new JLabel("0", JLabel.CENTER);

spinner1.setFont(new Font(null, Font.BOLD, 40));

spinnerPanel.add(spinner1);

spinner2 = new JLabel("0", JLabel.CENTER);

spinner2.setFont(new Font(null, Font.BOLD, 40));

spinnerPanel.add(spinner2);

spinner3 = new JLabel("0", JLabel.CENTER);

spinner3.setFont(new Font(null, Font.BOLD, 40));

spinnerPanel.add(spinner3);

add(spinnerPanel, BorderLayout.CENTER);

startStop = new JButton("START");

startStop.setFont(new Font(null, Font.ITALIC, 20));

startStop.addActionListener(this);

add(startStop, BorderLayout.SOUTH);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setSize(200, 150);

setLocationRelativeTo(null);

setVisible(true);

}

}