static void Main()
{
var nakov = new SeniorTrainer("Svetlin", "Nakov", 35);
var pesho = new JuniorTrainer("Pesho", "Peshev", 23);
var kiro = new OnsiteStudent("Kiro", "Ivanov", 20, "222653", 3.63m, 4);
var vanko = new OnsiteStudent("Ivan", "Dimitrov", 28, "122750", 5.63m, 6);
var petko = new DropoutStudent("Petko", "Georgiev", 25, "56565", 2.50m, "low grades");
var joro = new OnlineStudent("Joro", "Petrov", 22, "131365", 4.89m);
var penka = new OnlineStudent("Penka", "Koncheva", 35, "656565", 4.2m);
var toshko = new GraduateStudent("Tosho", "Ganchev", 29, "565656565", 5.40m);
var ian = new OnsiteStudent("Ian", "Bibian", 24, "332693", 6, 5);
var allPersons = new List<object> { nakov, pesho, kiro, vanko, petko, joro, penka, toshko, ian };
allPersons
.Where(person => person is CurrentStudent)
.Cast<CurrentStudent>()
.OrderByDescending(student => student.AverageGrade)
.ToList()
.ForEach(student => student.PrintInfo());
}
static void Main()
{
var nakov = new SeniorTrainer("Svetlin", "Nakov", 35);
var pesho = new JuniorTrainer("Pesho", "Peshev", 23);
var kiro = new OnsiteStudent("Kiro", "Ivanov", 20, "222653", 3.63m, 4);
var vanko = new OnsiteStudent("Ivan", "Dimitrov", 28, "122750", 5.63m, 6);
var petko = new DropoutStudent("Petko", "Georgiev", 25, "56565", 2.50m, "low grades");
var joro = new OnlineStudent("Joro", "Petrov", 22, "131365", 4.89m);
var penka = new OnlineStudent("Penka", "Koncheva", 35, "656565", 4.2m);
var toshko = new GraduateStudent("Tosho", "Ganchev", 29, "565656565", 5.40m);
var ian = new OnsiteStudent("Ian", "Bibian", 24, "332693", 6, 5);
var allPersons = new List <object> {
nakov, pesho, kiro, vanko, petko, joro, penka, toshko, ian
};
allPersons
.Where(person => person is CurrentStudent)
.Cast <CurrentStudent>()
.OrderByDescending(student => student.AverageGrade)
.ToList()
.ForEach(student => student.PrintInfo());
}