TicTacToe

import java.util.Scanner;

public class TicTacToe {

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

        char[][] board = new char[3][3];

        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                board[i][j] = ' ';
            }
        }

        char player = 'x';

        for (int i = 0; i < 9; i++) {
            String[] command = scan.nextLine().split(",");
            int x = Integer.parseInt(command[0]);
            int y = Integer.parseInt(command[1]);

            if (x >= 0 && x < 3 && y >= 0 && y < 3 && board[x][y] == ' ') {
                board[x][y] = player;
            } else {
                System.out.println("Invalid input!");
                i--;
            }

            // change player
            player = (player == 'o') ? 'x' : 'o';

            for (int k = 0; k < 3; k++) {
                for (int j = 0; j < 3; j++) {
                    System.out.print(board[k][j] + "|");
                }
                System.out.println();
            }

            for (int k = 0; k < 3; k++) {
                if (board[k][0] == board[k][1] && board[k][0] == board[k][2] && board[k][0] != ' ') {
                    System.out.printf("Player %c win!", board[k][0]);
                    return;
                }
                if (board[0][k] == board[1][k] && board[0][k] == board[2][k] && board[0][k] != ' ') {
                    System.out.printf("Player %c win!", board[0][k]);
                    return;
                }
            }
            if (board[0][0] == board[1][1] && board[0][0] == board[2][2] && board[0][0] != ' ') {
                System.out.printf("Player %c win!", board[0][0]);
                return;
            }
            if (board[2][0] == board[1][1] && board[2][0] == board[0][2] && board[1][1] != ' ') {
                System.out.printf("Player %c win!", board[1][1]);
                return;
            }
        }
        System.out.println("No winner!");

    }

}