Below is the Java code for Tic Tac Toe game, can you please modify my code asking whether the computer starts first or the player starts first the game. Also, add a HELP button/page that displays user name, rules of the game and the month/day/year when the implementation was finished.

Rules of the game:

1. The game is played on a grid that's 3 squares by 3 squares.

2. You are X, your friend (or the computer in this case) is O. Players take turns putting their marks in empty squares.

3. The first player to get 3 of her marks in a row (up, down, across, or diagonally) is the winner.

4. When all 9 squares are full, the game is over. If no player has 3 marks in a row, the game ends in a tie.

My Code:

import java.util.*;

import java.util.List;

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class TicTacToe extends JPanel

{

static String[] board;

static String turn;

static List buttons=new ArrayList();

static JFrame frame=new JFrame();

static int value=0;

static String winner = null;

static JLabel information=new JLabel("Welcome to 2 Player Tic Tac Toe.
X will play first.
Click near the center of a slot to place X in:");

public static void main(String[] args)

{

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

TicTacToe ticTacToe=new TicTacToe();

frame.add(ticTacToe);

frame.setContentPane(ticTacToe);

frame.setVisible(true);

board = new String[9];

turn = "X";

populateEmptyBoard();

}

static void winningText()

{

winner=checkWinner();

if(winner!=null)

{

if (winner.equalsIgnoreCase("draw"))

{

information.setText("It's a draw!
Thanks for playing.");

} else

{

information.setText("Congratulations!
"+ winner+ " has won!
Thanks for playing.");

}

}

}

static String checkWinner()

{

for (int a = 0; a < 8; a++)

{

String line = null;

switch (a)

{

case 0:

line = board[0] + board[1] + board[2];

break;

case 1:

line = board[3] + board[4] + board[5];

break;

case 2:

line = board[6] + board[7] + board[8];

break;

case 3:

line = board[0] + board[3] + board[6];

break;

case 4:

line = board[1] + board[4] + board[7];

break;

case 5:

line = board[2] + board[5] + board[8];

break;

case 6:

line = board[0] + board[4] + board[8];

break;

case 7:

line = board[2] + board[4] + board[6];

break;

}

if (line.equals("XXX"))

{

return "X";

}

else if (line.equals("OOO"))

{

return "O";

}

}

for (int a = 0; a < 9; a++)

{

if (Arrays.asList(board).contains("Empty"))

{

break;

}

else if (a == 8) return "draw";

}

information.setText(""+turn+"'s turn.
Click near the center of a slot to place "+turn+" in.");

return null;

}

static void populateEmptyBoard()

{

frame.setLayout(null);

information.setBounds(10,160, 400, 400);

frame.add(information);

int xIncrease=0;

int yIncrease=-100;

for(int i=0; i<9; i++) board[i]="Empty";

for(int y=0; y<3; y++)

{

xIncrease=0;

yIncrease+=100;

for (int x = 0; x < 3; x++)

{

buttons.add(new JButton(""));

buttons.get(value).setBounds(xIncrease, yIncrease, 100, 100);

buttons.get(value).setOpaque(false);

buttons.get(value).setContentAreaFilled(false);

buttons.get(value).setBorderPainted(false);

frame.add(buttons.get(value));

buttons.get(value).addActionListener(new ActionListener()

{

int val=value;

public void actionPerformed(ActionEvent e)

{

if(winner==null && board[val]=="Empty")

{

board[val]=turn;

buttons.get(val).setText(turn);

if (turn.equals("X"))

{

turn = "O";

}

else

{

turn = "X";

}

winningText();

}

else if(winner!=null) information.setText("The game has already been finished!");

else information.setText("The slot is already taken!
Pick another slot!");

}

});

value++;

xIncrease+=100;

}

frame.setSize(500,500);

frame.setResizable(false);

}

}

public void paintComponent(Graphics g)

{

super.paintComponent(g);

int x=100;

g.setColor(Color.BLACK);

for(int i=0; i<2; i++)

{

g.drawLine(0, 0+x, 300,0+x);

if(i==2) break;

g.drawLine(0+x,0,0+x, 300);

x+=100;

}

}

}