for loop

import java.util.Scanner;
 
public class TicTacToe{
   static Scanner sc = new Scanner(System.in); // the scanner class can access by all the methods 
    public static void main(String[] args) {
 
        // create a 2d character array full of dashes
        char[][] board = {{'-','-','-'},
                          {'-','-','-'},
                          {'-','-','-'}
                        };
 
        for(int i=0; i<9; i++){
            
            if(i%2==0){
                System.out.println("Turn: X");
                int[] spot = askUser(board);
                board[spot[0]][spot[1]] = 'X';
                printBoard(board);
           
            }
            else{
                System.out.println("Turn: O");
                int[] spot = askUser(board);
                board[spot[0]][spot[1]] = 'O';
                printBoard(board);
           
            }