public static int getColumnNumber(char columnToConvert) {
		int column = 100;

		switch (columnToConvert) {
		case 'a':
		case 'A':
			column = 0;
			break;
		case 'b':
		case 'B':
			column = 1;
			break;
		case 'c':
		case 'C':
			column = 2;
			break;
		default:
			column = 99;
			break;
		}

		return column;
	}