using System;

using System.Collections.Generic;   

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// Math.Truncate(number * 100) / 100 will use it

class Stock 

    {

    public event EventHandler PriceChanged ;

     public string Symbole {get;set;}

     public double Price {get;set;}

    }

public class StockAnalyzer

{

​

​

​

}

​

​

public class Program

{

     static T getPrice<T>(string prompt) where T : struct, IConvertible

    {

        Console.Write(prompt);

​

        while (true)

        {

            string price = Console.ReadLine();

​

            try

            {

                return (T)Convert.ChangeType(price, typeof(T));

            }

            catch (FormatException)

            {

                Console.WriteLine("Invalid input. Please enter a valid numeric value.");

                Console.Write(prompt);

            }

        }

     }

     static void Main()

    {

         List<Stock> stockList = new List<Stock>();

​

        Console.WriteLine("Enter person details. Type '!' for the Name to stop.");

​

        while (true)

        {

            Stock Instance = new Stock();

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            Console.Write("Enter stock symbol:");

            string symbole = Console.ReadLine();

​

            if (symbole == "!")

            {

                break; 

            }

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            Instance.Symbole = symbole;

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        Instance.Price = Math.Truncate(getPrice<double>("Enter stock initial price:\n") * 100) / 100 ;

​

           stockList.Add(Instance);

        }

​

        Console.WriteLine("\nPeople Entered:");

        foreach (Stock Instance in stockList)

        {

             Console.WriteLine($"Name: {Instance.Symbole}, Age: {Instance.Price}");

        }

         double thresholdPrice = Math.Truncate(getPrice<double>("Enter a threshold price to monitor for change:\n") * 100) / 100 ;

         double thresholdPriceChange = Math.Truncate(getPrice<double>("Enter a threshold price change percent:\n") * 100) / 100 ;

          foreach (Stock Instance in stockList)

        {

              double newPrice =Math.Truncate(getPrice<double>($"For stock with symbol {Instance.Symbole}, Please enter the new price:\n") * 100) / 100 ;

        }

    }

}

​