using System;

using System.Collections.Generic;

​

public class Company

{

    //properties to define a company

    public string Name { get; set; }

    public double PerUnitSales { get; set; }

    public string Type { get; set; }

​

    //constructor that initializes default values for a new company

    public Company()

    {

        Name = "N/A";

        PerUnitSales = 0;

        Type = "Private";

    }

​

    //constructor that initializes default values for a new company

    public Company(string name, double sales, string type)

    {

        Name = name;

        PerUnitSales = sales;

        Type = type;

    }

​

    public override string ToString()

    {

        return Name.PadRight(25) + 

            PerUnitSales.ToString("0.00 M").PadRight(10) + 

            Type.PadRight(10);

    }

​

}

​

public class Program

{

    Company[] compArray = new Company[5];

    void LoadCompaniesIntoArray()

    {

        Company compNew;

        //instantiate a new company

        compNew = new Company("Chick-fil-A", 2.85, "Private");

        //add the company to the list

        compArray[0] = compNew;

        compNew = new Company("Krispy Kreme", 2.57, "Public");

        compArray[1] = compNew;

        compNew = new Company("McDonald's", 2.53, "Public");

        compArray[2] = compNew;

        compNew = new Company("Panera Bread", 2.57, "Public");

        compArray[3] = compNew;

        compNew = new Company("Jason's Deli", 2.05, "Private");

        compArray[4] = compNew;

    }

​

    List<Company> compList = new List<Company>();

    // Code to initialize the list

    void LoadCompaniesIntoList()

    {

        Company compNew;

        //instantiate a new company

        compNew = new Company("Chick-fil-A", 2.85, "Private");

        //add the company to the list

        compList.Add(compNew);

        compNew = new Company("Krispy Kreme", 2.57, "Public");

        compList.Add(compNew);

        compNew = new Company("McDonald's", 2.53, "Public");

        compList.Add(compNew);

        compNew = new Company("Panera Bread", 2.57, "Public");

        compList.Add(compNew);

        compNew = new Company("Jason's Deli", 2.05, "Private");

        compList.Add(compNew);

    }

​

    public void Main()

    {

        //Load Array

        LoadCompaniesIntoArray();

        //Show Array Info

        Console.WriteLine("\n[Array Info]\n============");

        foreach (Company c in compArray)

        {

            Console.WriteLine(c.ToString());

        }

​

        //Load List

        LoadCompaniesIntoList();

        //Show List Info

        Console.WriteLine("\n\n[List Info]\n============");

        foreach (Company c in compList)

        {

            Console.WriteLine(c.ToString());

        }

​

        Console.WriteLine("\n============\n");

        //Ask users what type of companies they would like to display

        string strType;

        do

        {

            Console.WriteLine("Which type of company you would like " +

                              "to display (Public or Private)?");

            strType = Console.ReadLine();

            foreach (Company c in compList)

            {

                if (c.Type == strType) 

                {

                    //Only show companies that matches the give type

                    Console.WriteLine(c.ToString());

                }

            }

        } while (strType != "");

​

        //Clear list

        compList.Clear();

        //Show end of program

        Console.WriteLine("\nEnd.");

    }

}