using System;

using System.Collections;

​

class Product

{

    int id;

    string manufacturer;

    string model;

    decimal price;

    double overallPerformance;

    public int ID

    {

        get{ return id; }

        set

        {

            if(value <= 0)

                throw new ArgumentException("Id can not be less or equal than 0.");

            id = value;

        }

    }

    public string Manufacturer

    {

        get { return manufacturer; }

        set

        {

            string helpVar = value;

            while(helpVar.Contains(" "))

            {

                helpVar.Remove(' ');

            }

            if(value == null || helpVar == null)

                throw new ArgumentException("Manufacturer can not be empty.");

            manufacturer = value;

        }

    }

    public string Model

    {

        get { return model; }

        set

        {

            string helpVar = value;

            while(helpVar.Contains(" "))

            {

                helpVar.Remove(' ');

            }

            if(value == null || helpVar == null)

                throw new ArgumentException("Manufacturer can not be empty.");

            model = value;

        }

    }

    public decimal Price

    {

        get { return price; }

        set

        {

            if(value <= 0)

                throw new ArgumentException("Price can not be less or equal than 0.");

            price = value;  

        }

    }

    public double OverallPerformance

    {

        get { return overallPerformance; }

        set

        {

            if(value <= 0)

                throw new ArgumentException("Overall Performance can not be less or equal than 0.");

            overallPerformance = value; 

        }

    }

    public Product(int id, string manufacturer, string model, decimal price, double overallPerformance)

    {

        this.ID = id;

        this.Manufacturer = manufacturer;

        this.Model = model;

        this.Price = price;

        this.OverallPerformance = overallPerformance;

    }

    public string ToString(string productType)

    {

        return "Overall Performance: " + this.OverallPerformance + "Price: " + this.price  + " - " + productType + ": " + this.Manufacturer + "\n" + this.model + "(Id:" + this.ID + ")";

    }

}

​

class Component : Product

{

    int generation;

    public int Generation

    {

        get{ return generation; }

        set {generation = value;}

    }

    public Component(int id, string manufacturer, string model, decimal price, double overallPerformance, int generation) 

        : base(id, manufacturer, model,  price, overallPerformance)

    {

        this.Generation = generation;

    }

    override public string ToString()

    {

        return "Overall Performance: " + this.OverallPerformance + "Price: " + this.Price  + " - " + "Component" + ": " + this.Manufacturer + "\n" + this.Model + "(Id:" + this.ID + ")" + " Generation " + this.Generation;

    }

}

​

public class Method<T>

{

    public Method()

    {

    }

}

​

public class Program

{

    static Hashtable table = new Hashtable();

​

    static void newComponent(int id, string manufacturer, string model, decimal price, double overallPerformance, int generation)         

    {

        new Component(id, manufacturer, model,  price, overallPerformance, generation);           

    }

    static void m()

    {

        table.Add ("AddComponent", new Action<int, string, string, decimal, double, int>(newComponent));

    }

    public static void Main()

    {

        Console.WriteLine(table["AddComponent"]);

    }

}