/* Notes

- Constructor

    - A method that is called when an instance of a class is created

    - puts an object in an early state, initializes it, if we need it

    - has same name as the class, NO return type

    - If no parameters, it sets it to default

    - 'this' refers to the current object

- Constructor overloading

    - overloading is when multiple methods have the same name, but different parameters

*/

​

using System;

using System.Collections.Generic;

​

public class Order{

}

​

public class Customer{

    public int Id;

    public string Name;

    public List<Order> Orders;

    public Customer(){

        Orders = new List<Order>();

    }

    public Customer(int id) 

        : this()

    {

        this.Id = id;

    }

    public Customer(int id, string name)

        : this(id)

    {

        this.Name = name;

    }

}

​

public class Program

{

    public static void Main()

    {

        Customer customer = new Customer(1, "John");

        var order = new Order();

        //customer.Orders. = new List<Order>();

        customer.Orders.Add(order);

        Console.WriteLine(customer.Id);

        Console.WriteLine(customer.Name);

    }

}