Question

USING JAVA

Program a playable version of TicTacToe.

It should be:

•Playable by two players

•Show the board before asking each player for input

•Instruct the player on how to play at the start of the game

•Implement the standard rules of TicTacToe

Please make sure it's not a picture because I might not understand your handwriting or I might get the capitalization wrong and Java is case sensitive.

Answer 1

//Create a class TicTacToe.java

import java.util.Scanner;

public class TicTacToe {

static Scanner in;

private static char[][] board = new char[3][3];
private static char turn = 'X';

public static void writeBoard() {
System.out.println("------------------");
System.out.println("|R\\C| 1 | 2 | 3 |");
System.out.println("|1| " + board[0][0] + " | " + board[0][1] + " | " + board[0][2] + " | ");
System.out.println("------------------");
System.out.println("|2| " + board[1][0] + " | " + board[1][1] + " | " + board[1][2] + " | ");
System.out.println("------------------");
System.out.println("|3| " + board[2][0] + " | " + board[2][1] + " | " + board[2][2] + " | ");
}

public static void newGame() {
System.out.println("Enter X's or O's position e.g.(1 1) and position always starts from 1 not 0 ");
System.out.println("New Game: X goes first.");
System.out.println("");
board = new char[3][3];
board[0][0] = ' ';
board[0][1] = ' ';
board[0][2] = ' ';
board[1][0] = ' ';
board[1][1] = ' ';
board[1][2] = ' ';
board[2][0] = ' ';
board[2][1] = ' ';
board[2][2] = ' ';
turn = 'X';
}

public static void getMove() {
System.out.println(turn + "'turn");
System.out.println("Where do what your " + turn + " placed ?");

System.out.println("Please enter row number and column number separated by space");

in = new Scanner(System.in);
String input = in.nextLine();

if (input.contains(" ")) {
String data[] = input.split(" ");
int row = Integer.parseInt(data[0]);
int column = Integer.parseInt(data[1]);

System.out.println("You have entered row #" + data[0] + " and column #" + data[1]);

System.out.println("Thank you for your selection");

if (board[row - 1][column - 1] == 'X' || board[row - 1][column - 1] == 'O') {
System.out.println("That cell is already taken. ");
System.out.println("Please make another selection");
System.out.println("");
getMove();
} else {
board[row - 1][column - 1] = turn;
if (turn == 'X') {
turn = 'O';
} else {
turn = 'X';
}
}

} else {
System.out.println("Wrong input.. Try Again");
getMove();
}
}

public static boolean winner() {
boolean flag = false;

for (int a = 0; a < 8; a++) {
String line = null;
switch (a) {
case 0:
line = "" + board[0][0] + board[0][1] + board[0][2];
break;
case 1:
line = "" + board[1][0] + board[1][1] + board[1][2];
break;
case 2:
line = "" + board[2][0] + board[2][1] + board[2][2];
break;
case 3:
line = "" + board[0][0] + board[1][0] + board[2][0];
break;
case 4:
line = "" + board[0][1] + board[1][1] + board[2][1];
break;
case 5:
line = "" + board[0][2] + board[1][2] + board[2][2];
break;
case 6:
line = "" + board[0][0] + board[1][1] + board[2][2];
break;
case 7:
line = "" + board[0][2] + board[1][1] + board[2][0];
break;
}
if (line.equals("XXX")) {
System.out.println("X IS THE WINNER !!!!");
flag = true;
return flag;

} else if (line.equals("OOO")) {
System.out.println("O IS THE WINNER !!!!");
flag = true;
return flag;
}

}
int a=0;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
a++;
if (board[i][j]==' ') {
break;
} else if (a == 9) {
System.out.println("DRAW WINNER's BOARD");
flag = true;
return flag;
}

}
}
return flag;
}

public static void main(String[] args) {
TicTacToe.newGame();
while(!TicTacToe.winner())
{
TicTacToe.writeBoard();
TicTacToe.getMove();
}
  
  
}
}

//create a driver class TicTacToeDriver.java

public class TicTacToeDriver{
public static void main(String[] args) {
TicTacToe.newGame();
while(!TicTacToe.winner())
{
TicTacToe.writeBoard();
TicTacToe.getMove();
}
  
  
}
}

//run the TicTacToeDriver.java program

_______________________________________OUTPUT_____________________________________________

Enter X's or O's position e.g.(1 1) and position always starts from 1 not 0
New Game: X goes first.

------------------
|R\C| 1 | 2 | 3 |
|1| | | |
------------------
|2| | | |
------------------
|3| | | |
X'turn
Where do what your X placed ?
Please enter row number and column number separated by space
1 1
You have entered row #1 and column #1
Thank you for your selection
------------------
|R\C| 1 | 2 | 3 |
|1| X | | |
------------------
|2| | | |
------------------
|3| | | |
O'turn
Where do what your O placed ?
Please enter row number and column number separated by space
1 2
You have entered row #1 and column #2
Thank you for your selection
------------------
|R\C| 1 | 2 | 3 |
|1| X | O | |
------------------
|2| | | |
------------------
|3| | | |
X'turn
Where do what your X placed ?
Please enter row number and column number separated by space
2 2
You have entered row #2 and column #2
Thank you for your selection
------------------
|R\C| 1 | 2 | 3 |
|1| X | O | |
------------------
|2| | X | |
------------------
|3| | | |
O'turn
Where do what your O placed ?
Please enter row number and column number separated by space
3 3
You have entered row #3 and column #3
Thank you for your selection
------------------
|R\C| 1 | 2 | 3 |
|1| X | O | |
------------------
|2| | X | |
------------------
|3| | | O |
X'turn
Where do what your X placed ?
Please enter row number and column number separated by space
2 1
You have entered row #2 and column #1
Thank you for your selection
------------------
|R\C| 1 | 2 | 3 |
|1| X | O | |
------------------
|2| X | X | |
------------------
|3| | | O |
O'turn
Where do what your O placed ?
Please enter row number and column number separated by space
3 2
You have entered row #3 and column #2
Thank you for your selection
------------------
|R\C| 1 | 2 | 3 |
|1| X | O | |
------------------
|2| X | X | |
------------------
|3| | O | O |
X'turn
Where do what your X placed ?
Please enter row number and column number separated by space
3 1
You have entered row #3 and column #1
Thank you for your selection
X IS THE WINNER !!!!