public boolean checkBox (int row, int col) {
		int i = 0, j = 0, k = 0, count = 0;
        /* Uses nested for loops to check the entries */
		for (k = 1; k < 10; k++) {
			for (i = row; i < row+3; i++) {
				for (j = col; j < col+3; j++) {
					count = 0;
						if (k == Integer.parseInt(entries[i][j].getText())) {
							count++;
						}
						if (count >= 2) {
							System.out.println("checkBox() returned false at i: " + i + " j: "+ j + " with " + entries[i][j].getText()); 
							return false;
						}
				}
			}
		}
		return true;
	}