Play Tic Tack Toe with running this Java program.

TicTacToe.java

import java.util.Scanner;

public class TicTacToe {
    private char[][] board;
    private char currentPlayer;

    public TicTacToe() {
        board = new char[3][3];
        currentPlayer = 'X';
        initializeBoard();
    }

    public void initializeBoard() {
        for (int row = 0; row < 3; row++) {
            for (int col = 0; col < 3; col++) {
                board[row][col] = ' ';
            }
        }
    }

    public void printBoard() {
        System.out.println("-------------");
        for (int row = 0; row < 3; row++) {
            System.out.print("| ");
            for (int col = 0; col < 3; col++) {
                System.out.print(board[row][col] + " | ");
            }
            System.out.println("\n-------------");
        }
    }

    public boolean isBoardFull() {
        for (int row = 0; row < 3; row++) {
            for (int col = 0; col < 3; col++) {
                if (board[row][col] == ' ') {
                    return false;
                }
            }
        }
        return true;
    }

    public boolean makeMove(int row, int col) {
        if (row < 0 || row >= 3 || col < 0 || col >= 3 || board[row][col] != ' ') {
            return false;
        }

        board[row][col] = currentPlayer;
        currentPlayer = (currentPlayer == 'X') ? 'O' : 'X';
        return true;
    }

    public boolean checkWin() {
        // Check rows
        for (int row = 0; row < 3; row++) {
            if (board[row][0] == currentPlayer && board[row][1] == currentPlayer && board[row][2] == currentPlayer) {
                return true;
            }
        }

        // Check columns
        for (int col = 0; col < 3; col++) {
            if (board[0][col] == currentPlayer && board[1][col] == currentPlayer && board[2][col] == currentPlayer) {
                return true;
            }
        }

        // Check diagonals
        if (board[0][0] == currentPlayer && board[1][1] == currentPlayer && board[2][2] == currentPlayer) {
            return true;
        }
        if (board[0][2] == currentPlayer && board[1][1] == currentPlayer && board[2][0] == currentPlayer) {
            return true;
        }

        return false;
    }

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

        System.out.println("Welcome to Tic-Tac-Toe!");
        System.out.println("Commands:");
        System.out.println("- To make a move, enter row and column separated by a space ' '  (e.g., 1 2).");
        System.out.println("- To quit the game, enter 'quit' or 'exit'.");

        boolean gameRunning = true;

        while (gameRunning) {
            game.printBoard();
            System.out.print("Player " + game.currentPlayer + ", enter your move: ");
            String input = scanner.nextLine().trim();

            if (input.equalsIgnoreCase("quit") || input.equalsIgnoreCase("exit")) {
                gameRunning = false;
                System.out.println("Game has been terminated.");
                continue;
            }

            try {
                String[] inputParts = input.split(" ");
                int row = Integer.parseInt(inputParts[0]) - 1;
                int col = Integer.parseInt(inputParts[1]) - 1;

                if (game.makeMove(row, col)) {
                    if (game.checkWin()) {
                        game.printBoard();
                        System.out.println("Player " + game.currentPlayer + " wins! Congratulations!");
                        gameRunning = false;
                    } else if (game.isBoardFull()) {
                        game.printBoard();
                        System.out.println("It's a draw!");
                        gameRunning = false;
                    }
                } else {
                    System.out.println("Invalid move. Try again.");
                }
            } catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
                System.out.println("Invalid input. Please enter row and column numbers separated by space (e.g., 1 2), or enter 'quit' to exit.");
            }
        }

        scanner.close();
    }
}