Question

I’ve tried a couple of ways to do this…Basically I’m trying to create a tic tac toe board for an assignment and maybe I’m missing something obvious, but I get a “not a statement” error when I try to create the buttons. Here’s the code I’ve got:

        int rows = 3;
        int cols = 3;
        JPanel ticTacToeBoard = new JPanel();
        ticTacToeBoard.setLayout(new GridLayout(3, 3));
        for (int i = 0; i < rows; i++)
        {
            for (int j = 0; j < cols; j++)
            {
                JButton gameButton[i] = new JButton[];
                ticTacToeBoard.add(gameButton[i]);
            }
        }

Thanks…

Answer 1

You need to declare your array somewhere:

JButton[] gameButton = new JButton[size];

Then in your loop:

gameButton[i] = new JButton();

For example:

JButton[] gameButton = new JButton[rows * cols];
for (int i = 0; i < rows; i++) {
    for (int j = 0; j < cols; j++) {
        gameButton[i] = new JButton();
        ticTacToeBoard.add(gameButton[i]);
    }
}

You can also have a look at the Java tutorial on arrays.

Note: Is there a reason why you don’t use a List instead of an array? If would make your life easier.