board.java

import java.util.*;

class board{
    public static void main(String[] args) {
        char[][] board = new char[3][3];
        for(int row=0;row<board.length;row++){
            for(int col=0;col<board[row].length;col++){
                board[row][col]=' ';
            }
        }
        Scanner sc = new Scanner(System.in);
        char player = 'X';
        boolean gameover = false;

        while(!gameover){
            printBoard(board);
            System.out.println("Player " + player +" enter");
            int row = sc.nextInt();
            sc.nextLine();
            int col = sc.nextInt();
            sc.nextLine();
            if(board[row][col]== ' '){
                board[row][col]=player;
                gameover= Won(board,player);
                if(gameover){
                    System.out.println("Player "  + player  +" is the winner");
                }else{
                    if(player=='X'){
                        player='O';
                    }else{
                        player='X';
                        
                    }
                }


            }else {
                System.out.println("Invalid move");
            }

        }

        printBoard(board);


    }
    public static void printBoard(char[][] board){
        for(int row=0;row<board.length;row++){
            for(int col=0;col<board[row].length;col++){
                System.out.print(board[row][col] + "|");
            }
            System.out.println();
    }
    }
    public static boolean Won(char[][] board,char player){
        for(int row=0;row<board.length;row++){
            if(board[row][0]==player && board[row][1]== player && board[row][2]==player){
                return true;
            }
        }
        for(int col=0;col<board.length;col++){
            if(board[0][col]==player && board[1][col]== player && board[2][col]==player){
                return true;
            }
        }
        if(board[0][0]==player && board[1][1]==player && board[2][2]==player){
            return true;
        }
        if(board[0][2]==player && board[1][1]== player && board[2][0]==player){
            return true;
        }
        return false;

    }

}