/***
 * TicTac is the start of a program to play tic tac toe.
 *
 * This example shows the syntax for a 2-dimensional array,
 * with two subscripts, board[row][col]
 *
 * @version 0.1alpha, Oct 25 2002
 * @author  Jim Mahoney
 ***/

class TicTac {

    final private static int BLANK = 0;
    final private static int XX = 1;
    final private static int OO = 2;

    private static int board[][] = new int[3][3];
    // Java syntax would also allow this form:
    //      int[][] board;		// declaration
    //      board = new int[3][3];	// creation

    public static void main(String[] args){
	print(" -- Tic Tac Toe -- \n");
	initBoard();
	
	board[0][1] = XX;	// Plop down a few marks
	board[1][2] = OO;

	printBoard();		// and print the board.
    }

    private static void printBoard(){
	println(" ");				// start with a blank line
	for (int row=0; row<3; row++){
	    print("    ");			// 4 spaces start each line
	    for (int col=0;  col<3; col++){
		if ( board[row][col] == XX ){
		    print(" X ");
		}
		else if ( board[row][col] == OO ){
		    print(" O ");
		}
		else {
		    print("   ");
		}
		if (col<2) {
		    print("|");			// after columns 0 and 1
		}
	    }  // end loop over columns
	    println(" ");			// carriagee return
	    if (row<2) {
		println("    ---+---+---");	// after lines 0 and 1
	    }
	} // end loop over rows
	println(" ");				// blank line afterward.
    } // end printBoard

    private static void initBoard(){
	for (int row=0; row<3; row++){
	    for (int col=0;  col<3; col++){
		board[row][col] = BLANK;
	    }
	}
    }

    private static void println(String s){
	System.out.println(s);
    }

    private static void print(String s){
	System.out.print(s);
    }

}