
/**
 * Write a description of class arrayBoard here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class arrayBoard
{
    public arrayBoard()
    {
        Space [][] arrayBoard = new Space [3][3];
    }
    
    public void placePiece(Space clickedSpace, int playerNum)
    {
        if ((!clickedSpace.isBlank()) && (clickedSpace.getPlayer() != 0))
        {
            clickedSpace.setPlayer(playerNum);
            clickedSpace.setBlank(false);
        }
    }
    
    
}


/**
 * Write a description of class arrayBoard here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class arrayBoard
{
    public arrayBoard()
    {
        Space [][] arrayBoard = new Space [3][3];
    }
    
    public void placePiece(Space clickedSpace, int playerNum)
    {
        if ((!clickedSpace.isBlank()) && (clickedSpace.getPlayer() != 0))
        {
            clickedSpace.setPlayer(playerNum);
            clickedSpace.setBlank(false);
        }
    }
    
     public boolean checkWin ()
    {
        boolean win = false;

        // check rows and columns
        for (int i=0; i<3; i++) {
            if ((arrayBoard[i][1].getPlayer()).equals(arrayBoard[i][0].getPlayer())) {
                if ((arrayBoard [i][2].getPlayer()).equals(arrayBoard[i][0].getPlayer())){
                    win = true;
                }
            }
        }

        for (int j=0; j<3; j++) {
            if ((arrayBoard[1][j].getPlayer()).equals(arrayBoard[0][j].getPlayer())) {
                if ((arrayBoard [2][j].getPlayer()).equals(arrayBoard[0][j].getPlayer())){
                    win = true;
                }
            }
        }

        //check diag
        if ((arrayBoard[1][1].getPlayer()).equals(arrayBoard[0][0].getPlayer())) {
            if ((arrayBoard [1][1].getPlayer()).equals(arrayBoard[2][2].getPlayer())){
                win = true;
            }
        }
        if ((arrayBoard[0][2].getPlayer()).equals(arrayBoard[1][1].getPlayer())) {
            if ((arrayBoard [2][0].getPlayer()).equals(arrayBoard[1][1].getPlayer())){
                win = true;
            }
        }
        return win;
    }
    
    
}

Update arrayBoard.java