Submitted Exam Code

/*
 *  Date: 2012-05-12
 *  Author: Mark Grealish ([email protected])
 *  Description: A "battle of the bands" CSV parser.
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace ConsoleApplication1
{
    class Program
    {
        // Path to file. Easier to make it global.
        static private string path = "votes.txt";

        static void Main(string[] args)
        {
            // Menu choice.
            int mc = 42;

            do
            {
                Console.Clear();
                Console.WriteLine("Menu Choice:");
                Console.WriteLine();
                Console.WriteLine("1. Generate report.");
                Console.WriteLine("2. Search for a band.");
                Console.WriteLine("4. Exit.");
                Console.WriteLine();
                mc = intParse("Selection: ");

                switch (mc)
                {
                    case 1:
                        csvView(-1);
                        break;
                    case 2:
                        // TODO :[
                        break;
                    case 4:
                        break;
                    default:
                        break;
                }
            } while(mc != 4);
        }

        private static void csvView(int rec)
        {
            // Grab our parsed data.
            string[] data   = csvParse(path);
            // Formatting data.
            string[] header = { "Band name:", "Total votes:", "Star rating:" };
            string divider  = "------------";
            string format   = "{0,-20}";

            string[] record;

            Console.Clear();
            // Header.
            for (int i = 0; i < header.Length; i++)
                Console.Write(String.Format(format, header[i]));
            Console.WriteLine();
            // Divider.
            for (int i = 0; i < header.Length; i++)
                Console.Write(String.Format(format, divider));
            Console.WriteLine();

            if (rec < 0)
            {
                // Body.
                for (int i = 0; i < (data.Length - 1); i++)
                {
                    record = data[i].Split(',');

                    for (int j = 1; j < record.Length; j++)
                    {
                        Console.Write(String.Format(format, record[j]));
                    }

                    Console.Write(String.Format(format, bandVotes(record[2])));
                    Console.WriteLine();
                }
            }
            else if (rec <= 0)
            {
                record = data[rec].Split(',');
                for (int i = 1; i < record.Length; i++)
                    Console.Write(String.Format(format, record[i]));
            }

            // Output average votes.
            averageVotes();

            Console.WriteLine();
            Console.Write("Press [RETURN] to return to the main menu. ");
            Console.ReadLine();
        }

        // Votes.
        private static string bandVotes(string inVotes)
        {
            int votes           = Convert.ToInt32(inVotes);
            string[] stars      = {"*","**","***","****"};
            string voteStars    = "";

            if (votes < 100)
                voteStars = stars[0];
            else if ((votes >= 100) && (votes <= 299))
                voteStars = stars[1];
            else if ((votes >= 300) && (votes <= 499))
                voteStars = stars[2];
            else if (votes > 499)
                voteStars = stars[3];

            return voteStars;
        }

        // Average votes.
        private static void averageVotes()
        {
            string[] data       = csvParse(path);
            double[] numbers    = new double[data.Length];
            double average      = 0;
            string[] record;
            string format       = "{0,-20}{1,-20}";

            for (int i = 0; i < (data.Length - 1); i++)
            {
                record = data[i].Split(',');
                numbers[i] = Convert.ToDouble(record[2]);
            }

            average = numbers.Average();

            Console.WriteLine();
            Console.Write(String.Format(format, "Average votes:", average));
            Console.WriteLine();
        }

        // Parse the data from the file and into an array.
        private static string[] csvParse(string path)
        {
            // Temp list.
            List<string> temp   = new List<string>();
            string line         = "";

            using (StreamReader voteData = new StreamReader(path))
            {
                while (line != null)
                {
                    // Read the file one line at a time into the list.
                    line = voteData.ReadLine();
                    temp.Add(line);
                }
            }

            // Convert the list to an array so I can use it elsewhere.
            string[] parsedVoteData = temp.ToArray();

            // And then home.
            return parsedVoteData;
        }

        // Parse variable input.
        private static int intParse(string userAsk)
        {
            string userInput;
            int number = 0;
            bool parsed;

            do
            {
                // Ask the user for input.
                Console.Write(userAsk);
                // Read it.
                userInput = Console.ReadLine();
                // Parse it.
                parsed = Int32.TryParse(userInput, out number);

                if (!parsed)
                {
                    // If it doesn't parse, throw out an error.
                    Console.WriteLine();
                    Console.WriteLine("Please enter a valid number!");
                    Console.WriteLine();
                }
            // Continue to do this while input doesn't parse.
            } while (!parsed);

            // Return parsed number.
            return number;
        }
    }
}