task42

using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
    public static void Main(string[] args)
    {
        Shop shop = new Shop();
        shop.ShowStewOutDateExpiration();
    }
}

public class Shop
{
    private Random _random;
    private List<Stew> _stews;

    private int _yearNow;

    public Shop()
    {
        _stews = new List<Stew>();
        _random = new Random();
        _yearNow = 2021;
        CreateStews();
    }

    public void ShowStewOutDateExpiration()
    {
        List<Stew> stewsFiltered = _stews.Where(stew => _yearNow - stew.YearManafacture > stew.DateExpiration)
                                         .ToList();
        Console.WriteLine("Stew out of date of expiration : ");
        PrintStews(stewsFiltered);
    }

    private void CreateStews()
    {
        string[] names = { "Grodfood", "Snov", "Meatoholic", "Kalinkovichy", "Stolbcy" };

        int stewsAmountMinimum = 10;
        int stewsAmountMaximum = 100;

        int yearMinimum = 1960;
        int yearMaximum = 2021;

        int dateExpirationMinimum = 1;
        int dateExpirationMaximum = 40;

        int amountStews = _random.Next(stewsAmountMinimum, stewsAmountMaximum);

        string name;
        int year;
        int dateExpiration;

        for (int i = 0; i < amountStews; ++i)
        {
            name = names[_random.Next(names.Length)];
            year = _random.Next(yearMinimum, yearMaximum);
            dateExpiration = _random.Next(dateExpirationMinimum, dateExpirationMaximum);
            _stews.Add(new Stew(name, year, dateExpiration));
        }
    }

    private void PrintStews(List<Stew> stews)
    {
        Console.WriteLine();

        foreach (Stew stew in stews)
            Console.WriteLine(stew);
    }
}

public class Stew
{
    public string Name { get; private set; }
    public int YearManafacture { get; private set; }
    public int DateExpiration { get; private set; }

    public Stew(string name, int yearManafacture, int dateExpiration)
    {
        Name = name;
        YearManafacture = yearManafacture;
        DateExpiration = dateExpiration;
    }

    public override string ToString()
    {
        return String.Format($"{Name} stew ({YearManafacture}) - {DateExpiration} years.");
    }
}