public int CompareTo(FootballClub other)
{
if (!year.Equals(other.year))
{
return(year.CompareTo(other.year));
}
if (!name.Equals(other.name))
{
return(name.CompareTo(other.name));
}
if (country != other.country)
{
return(country.CompareTo(other.country));
}
if (city != other.city)
{
return(city.CompareTo(other.city));
}
return(0);
}
protected virtual bool EqualClubs(FootballClub i)
{
return(name == i.name && city == i.city && country == i.country && year == i.year);
}