The tic-tac-toe program, JAVA Programming

Assignment Help:

Instructions

Modify the program so that the computer will generate moves for the
‘O' player (it must continue to accept user input for ‘X'). A simple way to do this is to use a random value between 0 and 9 to generate moves for ‘O'.

currMove = (int)(Math.random() * 9) + 1;

You will have to ensure, of course, that the computer does not generate a move for a square that is already occupied. Another simple way to generate moves is to simply move to the first unoccupied square.

Also I need explain in words (as clearly and precisely as possible) any improvements you made to the program.

Any other improvement to make this program looks better please sent me in a different attach.

The Program

/**
* Homework Assignment #1 -- Working With Two-Dimensional Arrays (Tic-Tac-Toe)
* CPS , Section [[Put your section number here]]
*
* @author [[Put your name here]]
* @version 1.1 [[Put current date here]]
*/
import java.util.Scanner;

public class Hmwk1 {

public static final char SPACE = ' ';
// Tic-tac-toe board showing move numbers
public static final char[][] MOVE_INFO = {{'1', '2', '3'},
{'4', '5', '6'},
{'7', '8', '9'}};

public static void main(String[] args) {
Scanner in = new Scanner(System.in);

char[][] board = new char[3][3];
char currPlayer = 'X';

fill2D(board, SPACE);
printBoard(MOVE_INFO);
while (!gameOver(board)) {
System.err.print("Move for " + currPlayer + "? ");
int currMove = in.nextInt();
makeMove(currPlayer, currMove, board);
printBoard(board);
currPlayer = nextPlayer(currPlayer);
}
reportResults(board);
}

/**
* Fill a given two-dimensional character array with a given
* character
*
* @param a the array to fill
* @param c the character to use
*/
public static void fill2D(char[][] a, char c) {
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[i].length; j++) {
a[i][j] = c;
}
}
}

public static final String VERT = " * * ";
public static final String HORZ = "***********";

/**
* Print the contents of an array representing a tic-tac-toe
* board
*
* @param board the board configuration to be printed
*/
public static void printBoard(char[][] board) {
System.out.println();
for (int i = 0; i < board.length; i++) {
System.out.println(VERT);
for (int j = 0; j < board[i].length; j++) {
System.out.print(" " + board[i][j] + " ");
if (j < board[i].length - 1) {
System.out.print("*");
} else {
System.out.println();
}
}
System.out.println(VERT);
if (i < board.length - 1) {
System.out.println(HORZ);
}
}
System.out.println();
}

/**
* Determine if the game is over; i.e., if a player has won or if
* there are no more moves possible
*
* @param board current board configuration
* @return true if game is over, false otherwise
*/
public static boolean gameOver(char[][] board) {
return noMovesLeft(board)
|| isWinner('X', board)
|| isWinner('O', board);
}

/**
* Determine if no more moves are possible; i.e., if there
* are no more SPACE's left in the board array
*
* @param board the current board configuration
* @return true if there are no more legal moves, false otherwise
*/
public static boolean noMovesLeft(char[][] board) {
for (int i = 0; i < board.length; i++) {
for (int j = 0; j < board[i].length; j++) {
if (board[i][j] == SPACE) {
return false;
}
}
}
return true;
}

/**
* Determine if a given player is a winner; i.e., has 3 marks in a
* row, either horizontally, vertically, or diagonally
*
* @param player the player to check
* @param board the current board configuration
* @return true if player has 3 marks in a row, false otherwise
*/
public static boolean isWinner(char player, char[][] board) {
// check rows (horizontal)
for (int row = 0; row < 3; row++) {
if (board[row][0] == player && board[row][1] == player
&& board[row][2] == player) {
return true;
}
}
// check cols (vertical)
for (int col = 0; col < 3; col++) {
if (board[0][col] == player && board[1][col] == player
&& board[2][col] == player) {
return true;
}
}
// check diagonals
if (board[0][0] == player && board[1][1] == player
&& board[2][2] == player) {
return true;
} else if (board[0][2] == player && board[1][1] == player
&& board[2][0] == player) {
return true;
} else {
return false;
}
}

/**
* Mark the specified move for the specified player on the given
* board configuration (move == 1 => [0][0], move == 2 => [0][1],
* move == 3 => [0][2], move == 4 => [1][0], move == 5 => [1][1],
* move == 6 => [1][2], move == 7 => [2][0], move == 8 => [2][1],
* move == 9 => [2][2])
*
* @param player the player making the move
* @param move the move to be made
* @param board the current board configuration
*/
public static void makeMove(char player, int move, char[][] board) {
int row = (move - 1) / board.length;
int col = (move - 1) % board[row].length;
board[row][col] = player;
}

/**
* Determine the next player, for cycling X, then O, then X, etc.
*
* @param current the current player ('X' or 'O')
* @return the next player to play ('O' or 'X')
*/
public static char nextPlayer(char current) {
if (current == 'X') {
return 'O';
} else {
return 'X';
}
}

/**
* Report the results of the game, whether X or O won or the game
* ended in a tie.
*
* @param board the board configuration to be described
*/
public static void reportResults(char[][] board) {
if (isWinner('O', board)) {
System.out.println("O is the winner!");
} else if (isWinner('X', board)) {
System.out.println("X is the winner!");
} else {
System.out.println("The game ends in a tie.");
}
}

}


Related Discussions:- The tic-tac-toe program

Create a wall posting class, Your FaceBooklet application will use the clas...

Your FaceBooklet application will use the classes you wrote for Program 3. Start by creating a copy of your Program 3 project with a new name (say, "Program4"). Note that you ca

Convert US Dollars to Canadian Dollars, How to write a program that convert...

How to write a program that converts US dollars into Canadian dollars.The program let the user enter an amount in US dollars and display it equivalent value in Canadian dollars whe

Describe about user security issues and social engineering, Describe about ...

Describe about User Security Issues and Social Engineering ? Contrary to popular belief most computer break-ins through external hackers don't happen since of great knowledge

What is object oriented programming explain with an example, What is Object...

What is Object Oriented Programming explain with an example? In Java everything is an object or a class (or a piece of one or a collection of various). Objects send messages t

What is a final modifier? illustrate other java modifiers?, A final class w...

A final class will not be extended i.e. A final method cannot be overridden when its class is added. You can't modify value of a final variable.

1. Create a text file (you can name it sales.txt) that conta, 1. Create a t...

1. Create a text file (you can name it sales.txt) that contains in each line the daily sales of a company for a whole month. Then write a Java application that: a. asks the user fo

Difference among microprocessors and microcontrollers, What is the differen...

What is the difference among microprocessors and microcontrollers? Give one example of both? The microprocessor is electronic equipment that can perform various functions and a

What is spring configuration file, Spring configuration file is an XML file...

Spring configuration file is an XML file. This file having the classes information and defines how these classes are configured and introduced to each other.

Explain the purpose of the access token, Question: a) Authentication r...

Question: a) Authentication relies on standards and protocols that are used to confirm the identity of a user or object. Windows Server 2003 supports several types of network

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd