arrays.java

        char[][] board = new char[3][3];
//        for(int i = 0; i < board.length; i++) {
//            board[i] = new int[3];
//        }

        for(int i = 0; i < board.length; i++) {
            char[] row = board[i];
            for(int j = 0; j < row.length; j++) {
                row[j] = 'a' + 3;
            }
        }

        for(int i = 0; i < board.length; i++) {
            char[] row = board[i];
            for(int j = 0; j < row.length; j++) {
                System.out.print(row[j]);
            }
            System.out.println();
        }