using System;

using System.Collections.Generic; // 1. [Code] Uncomment this following line of code

​

// Customer class

public class Customer

{

    // 2. [Code] Use auto-implementation to add three properties

    // (1) Name (public, string)

    // (2) Education (public, string)

    // (3) Email (public, string)

    public string Name { get; set; }

    public string Education { get; set; }

    public string Email { get; set; }

​

    // Default constructor

    public Customer() {}

​

    // 3. [Code] Add the second constructor with 3 parameters to update the 3 properties.

    public Customer(string name, string education, string email)

    {

        Name = name;

        Education = education;

        Email = email;

    }

​

    // 4. [Code] Function

    // Function Name: EmailLength

    // Input: no

    // Output: int

    // return length of user's email

    public int EmailLength()

    {

        return Email.Length;

    }

}

​

public class Program

{

    // 5. [Code] Add a CustomerList (static, because we will access it from the static Main method)

    static List<Customer> CustomerList = new List<Customer>();

​

    public static void Main()

    {

        // 6. [Code] Create 3 customer objects, and add them into a list

        // Name: "John", Education: "Bachelor", Email: "john@gmail.com"

        // Name: "David", Education: "Bachelor", Email: "david@iu.edu"

        // Name: "Anderson", Education: "Master", Email: "anderson@iu.edu"

​

        CustomerList.Add(new Customer("John", "Bachelor", "john@gmail.com"));

        CustomerList.Add(new Customer("David", "Bachelor", "david@iu.edu"));

        CustomerList.Add(new Customer("Anderson", "Master", "anderson@iu.edu"));

​

        // Show the list

        Console.WriteLine("Show List");

        // 7. [Code] Use foreach to loop over the list and show name, education, and email information.

        // Use PadRight(15) to format your output in three columns.

​

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

        foreach (var customer in CustomerList)

        {

            // Fixed: Using String.Format instead of string interpolation

            Console.WriteLine("{0,-15}{1,-15}{2,-15}", customer.Name, customer.Education, customer.Email);

        }

​

        // Show all list

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

        Console.WriteLine("Show Email Length for all the elements of the list");

        // 8. [Code] Use foreach to loop over the list and show the results of EmailLength() function

​

        foreach (var customer in CustomerList)

        {

            // Fixed: Using String.Format instead of string interpolation

            Console.WriteLine("{0,-15}{1,-15}", customer.Name, customer.EmailLength());

        }

​

        // Show Only Bachelor

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

        Console.WriteLine("Show Only Bachelor Entries");

        // 9. [Code] Use foreach to loop the list and show name, education, and email information.

        // Use PadRight(15) to format your output in three columns.

        // Show ONLY customer with a bachelor's degree.

​

        foreach (var customer in CustomerList)

        {

            if (customer.Education == "Bachelor")

            {

                // Fixed: Using String.Format instead of string interpolation

                Console.WriteLine("{0,-15}{1,-15}{2,-15}", customer.Name, customer.Education, customer.Email);

            }

        }

​

        // 10. [Code] Clear List

        CustomerList.Clear();

    }

}

​