task2.java

import java.util.Scanner;

public class task2 {
    private static char[][] board = new char[3][3];
    private static Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {
        initializeBoard();
        displayBoard();

        char currentPlayer = 'X';
        boolean gameWon = false;

        while (!gameWon && !isBoardFull()) {
            playerMove(currentPlayer);
            displayBoard();
            gameWon = checkWin(currentPlayer);
            if (!gameWon) {
                currentPlayer = (currentPlayer == 'X') ? 'O' : 'X';
            }
        }

        if (gameWon) {
            System.out.println("Player " + currentPlayer + " wins!");
        } else {
            System.out.println("It's a tie!");
        }

        scanner.close();
    }

    private static void initializeBoard() {
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                board[i][j] = '-';
            }
        }
    }

    private static void displayBoard() {
        System.out.println("Current board:");
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                System.out.print(board[i][j] + " ");
            }
            System.out.println();
        }
    }

    private static void playerMove(char player) {
        int row, col;
        while (true) {
            System.out.println("Player " + player + ", enter your move (row and column): ");
            row = scanner.nextInt() - 1;
            col = scanner.nextInt() - 1;
            if (row >= 0 && row < 3 && col >= 0 && col < 3 && board[row][col] == '-') {
                board[row][col] = player;
                break;
            } else {
                System.out.println("This move is not valid");
            }
        }
    }

    private static boolean checkWin(char player) {
        // Check rows and columns
        for (int i = 0; i < 3; i++) {
            if ((board[i][0] == player && board[i][1] == player && board[i][2] == player) ||
                    (board[0][i] == player && board[1][i] == player && board[2][i] == player)) {
                return true;
            }
        }
        // Check diagonals
        if ((board[0][0] == player && board[1][1] == player && board[2][2] == player) ||
                (board[0][2] == player && board[1][1] == player && board[2][0] == player)) {
            return true;
        }
        return false;
    }

    private static boolean isBoardFull() {
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                if (board[i][j] == '-') {
                    return false;
                }
            }
        }
        return true;
    }
}