Thread: Tic Tac Toe GUI applet help!

I am here because I don't understand how to proceed with the code I need to set up.
I would like to know the best way to get this code running the easiest way possible.
I am not just looking for a solved code but how and why the code was written the way it was.
This program needs to be in the applet format, thank you all in advance!

A few requirements are:

• Use grid layout
• add a random method to simulate another player
• use X's and O's to display who moved where.
• program tells you who wins.

Edit:I updated the code in the top post for all new people who hasn't seen it yet.
All I need now is to implement the computer simulation.

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JApplet;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.LineBorder;
 
 
public class TicTacToe extends JApplet {
 
	private char whoseTurn = 'X';
	private Cell[][] cells = new Cell[3][3];
	private JLabel jlblStatus = new JLabel("X's turn to play");
 
	public TicTacToe() {
		JPanel p = new JPanel(new GridLayout(3, 3, 0, 0));
		for (int i = 0; i < 3; i++)
			for (int j = 0; j < 3; j++)
				p.add(cells[i][j] = new Cell());
 
		p.setBorder(new LineBorder(Color.red, 1));
		jlblStatus.setBorder(new LineBorder(Color.yellow, 1));
 
		add(p, BorderLayout.CENTER);
		add(jlblStatus, BorderLayout.SOUTH);
	}
 
	//Check to see if the spot is filled
	public boolean isFull() {
		for (int i = 0; i < 3; i++)
			for (int j = 0; j < 3; j++)
				if (cells[i][j].getToken() == ' ')
					return false;
 
		return true;
	}
 
	//Check for a winner
	public boolean isWon(char token) {
		for (int i = 0; i < 3; i++)
			if ((cells[i][0].getToken() == token)
				&& (cells[i][1].getToken() == token)
				&& (cells[i][2].getToken() == token)) {
				return true;
			}
 
		for (int j = 0; j < 3; j++)
			if ((cells[0][j].getToken() == token)
				&& (cells[1][j].getToken() == token)
				&& (cells[2][j].getToken() == token)) {
				return true;
			}
 
		if ((cells[0][0].getToken() == token)
			&& (cells[1][1].getToken() == token)
			&& (cells[2][2].getToken() == token)) {
			return true;
		}
 
		if ((cells[0][2].getToken() == token)
			&& (cells[1][1].getToken() == token)
			&& (cells[2][0].getToken() == token)) {
			return true;
		}
 
		return false;
 
	}
 
	public class Cell extends JPanel {
		private char token = ' ';
 
		public Cell() {
			setBorder(new LineBorder(Color.black, 1));
			addMouseListener(new MyMouseListener());
		}
 
		public char getToken() {
			return token;
		}
 
		public void setToken(char c) {
			token = c;
			repaint();
		}
 
		public void paintComponent(Graphics g) {
			super.paintComponent(g);
			if (token == 'X') {
				g.drawLine(10, 10, getWidth() - 10, getHeight() - 10);
				g.drawLine(getWidth() - 10, 10, 10, getHeight() - 10);
			} else if (token == '0') {
				g.drawOval(10, 10, getWidth() - 20, getHeight() - 20);
			}
		}
 
		private class MyMouseListener extends MouseAdapter {
			public void mouseClicked(MouseEvent e) {
 
				if (token == ' ' && whoseTurn != ' ') {
					setToken(whoseTurn);
 
					if (isWon(whoseTurn)) {
						jlblStatus.setText(whoseTurn + " won! The game is over");
						whoseTurn = ' ';
					} else if (isFull()) {
						jlblStatus.setText("Draw! The game is over");
						whoseTurn = ' ';
					} else {
						whoseTurn = (whoseTurn == 'X') ? '0' : 'X';
						jlblStatus.setText(whoseTurn + "'s turn");
					}
				}
			}
		}		
	}
}

This first problem I see is that the code is not written with the methods an applet requires.
See the tutorial:
Lesson: Java Applets (The Java™ Tutorials > Deployment)