public void Retire()
{
Retired?.Invoke();
}
static void Main(string[] args)
{
Student student = new Student()
{
Name = "Ivan Ivanov", Passport = "EK75960"
};
Employed employed = new Employed()
{
Name = "Ivan Ivanov", Passport = "EK75960"
};
Retired retired = new Retired()
{
Name = "Petr Petrov", Passport = "TY878203"
};
CitizensCollection citizens = new CitizensCollection();
citizens.Add(student);
citizens.Add(retired);
try
{
Console.WriteLine("Attempt to add a person with the same passport number");
citizens.Add(employed);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Console.WriteLine(new string('_', 50));
foreach (Citizen citizen in citizens)
{
Console.WriteLine($"{citizen.GetType().Name}. Name: {citizen.Name}. Passport: {citizen.Passport}.");
}
Console.WriteLine(new string('_', 50));
Console.WriteLine("Check if the collection contains requested citizen");
Retired retired1 = new Retired()
{
Name = "Stanislav Petrov", Passport = "HJ869595"
};
(bool, int)result = citizens.Contains(retired1);
Console.WriteLine($"Collection contains the requested citizen: {result.Item1}");
result = citizens.Contains(retired);
Console.WriteLine($"Collection contains the requested citizen: {result.Item1}. Number in the collection: {result.Item2}");
Console.WriteLine(new string('_', 50));
Console.WriteLine($"Last citizen is {citizens.ReturnLast().Item1.Name} with the passport number {citizens.ReturnLast().Item1.Passport} and its number in collection is {citizens.ReturnLast().Item2}");
Console.WriteLine(new string('_', 50));
Console.WriteLine("Remove the data about citizen");
citizens.Remove(student);
citizens.Remove(retired1);
foreach (Citizen citizen in citizens)
{
Console.WriteLine($"{citizen.GetType().Name}. Name: {citizen.Name}. Passport: {citizen.Passport}.");
}
Console.ReadKey();
}
public static bool AreEqual(Retired expected, Retired actual)
{
Assert.NotNull(actual);
Assert.AreEqual(expected.RetirementDate, actual.RetirementDate);
return(true);
}
