Live coding

part1.cs

using System;
using System.Collections.Generic;

namespace Console1
{
	class Beverage
	{}

	class Flavor
	{}

	class Coffee
	{}

	class CoffeeMachine
	{}

	class Program
	{
		static void Main(string[] args)
		{
			var myCoffeeMachine = <Build a DEFAULT coffee machine>; 
			myCoffeeMachine.List();
			/*
			0 -> Cappuccino
			1 -> Hot Water
			2 -> Steam
			*/
			
			myCoffeeMachine
			    .Select(0)
			    .Select(2); 
			myCoffeeMachine.Make();  // Here is your drink - Cappuccino with Steam
			
			myCoffeeMachine
			    .Select(0)
					.Select(5)
			    .Select(1).Make(); // Here is your drink - Cappuccino with Hot Water
			
			myCoffeeMachine
			    .Select(0); 
			myCoffeeMachine.Make(); // Here is your drink - Cappuccino
			
			myCoffeeMachine.AddBeverage("Mocha"); 
			myCoffeeMachine.List(); 
			
			/*
			0 -> Cappuccino
			1 -> Hot Water
			2 -> Steam
			3 -> Mocha
			*/
			
			var myNewCoffeeMachine = <Build a new Coffee Machine with Espresso, Steam and Frappe as drinks>; 
			myNewCoffeeMachine.List(); 
			
			/*
			0 -> Espresso
			1 -> Steam
			2 -> Frappe
			*/
			
			myNewCoffeeMachine
			    .Select(0)
			    .Select(1);
			myNewCoffeeMachine.Make(); // Here is your drink - Espresso with Steam
			
			var anotherMachine = <Add code to make a Coffee Machine with DEFAULT 3 drinks + Green Tea and Caffe Mocha>;
			anotherMachine.List();
			
			/*
			0 -> Cappuccino
			1 -> Hot Water
			2 -> Steam
			3 -> Green Tea
			4 -> Caffe Mocha
			*/
			
			anotherMachine
			    .Select(0)
			    .Select(3);
			anotherMachine.Make(); // Here is your drink - Cappuccino with Green Tea
			
			anotherMachine
			    .Select(0)
			    .Select(9);
			anotherMachine.Make(); // Here is your drink - Cappuccino
		}
	}
}