просто сам код реализован и одна сортировка работает, подскажите пожалуйста как?
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| using System;
using System.Collections.Generic;
using System.Linq;
namespace Program
{
class Transport:IComparable<Transport>
{
public string Name { get; private set; }
public double Consumption { get; private set; }
public int Weight { get; private set; }
public Transport() { }
public Transport(string name, double consumption, int weight)
{
Name = name;
Consumption = consumption;
Weight = weight;
}
public override string ToString()//перегружаем метод
{
return $"{Name,12}\t{Consumption}л/100км\t{Weight,6}кг\t";//интерполируем ToString
}
public int CompareTo(Transport obj)
{
if (this.Consumption > obj.Consumption)
return 1;
if (this.Consumption < obj.Consumption)
return -1;
else
return 0;
}
}
class PassengerTransport : Transport
{
public int Quantity { get; private set; }
public PassengerTransport() : base() { }
public PassengerTransport(string name, double consumption, int weight, int quantity)
: base(name, consumption, weight)
{
Quantity = quantity;
}
public override string ToString()//перегружаем метод
{
return base.ToString() + $"{Quantity}мест\t";//интерполируем ToString
}
}
class CargoTransport : Transport
{
public double Space { get; private set; }
public int CargoWeight { get; private set; }
public CargoTransport() : base() { }
public CargoTransport( string name, double consumption, int weight, double space, int cargoWeight)
: base(name, consumption, weight)
{
Space = space;
CargoWeight = cargoWeight;
}
public override string ToString()//перегружаем метод
{
return base.ToString() + $"\t{Space}м3\t{CargoWeight}кг\t";//интерполируем ToString
}
}
class SpecialCargoTransport : CargoTransport
{
public string Registration { get; private set; }
public string Specialization { get; private set; }
public SpecialCargoTransport() : base() { }
public SpecialCargoTransport(string name, double consumption, int weight, double space, int cargoWeight,
string registration, string specialization)
: base(name, consumption, weight, space, cargoWeight)
{
Registration = registration;
Specialization = specialization;
}
public override string ToString()//перегружаем метод
{
return base.ToString() + $"\t{Registration,15}\t{Specialization,14}";//интерполируем ToString
}
}
class MainClass
{
static void Main()
{
var transports = new List<Transport>//создаем список
{
new PassengerTransport("Газель", 17.5, 3500, 14),
new PassengerTransport("Баргузин", 13.3, 2800, 14),
new PassengerTransport("Toyota", 20.7, 3170, 30),
new PassengerTransport("Hyundai", 37.3, 10400, 78),
new CargoTransport("Камаз", 34.0, 7080, 8.0, 8000),
new CargoTransport("Маз", 29.7, 5500, 3.0, 4500),
new CargoTransport("Volvo FM", 21.0, 10900, 10.0, 11000),
new CargoTransport("Renault", 22.0, 12000, 10.8, 11800),
new SpecialCargoTransport("Volvo FM", 21.0, 11000, 10.1, 5000,"4587po 12.12.12", "рефрижиратор"),
new SpecialCargoTransport("Volvo FN", 30.5, 16000, 8.0, 15000,"4521kg 4.03.15", "миксер"),
new SpecialCargoTransport("Маз", 29.7, 5500, 4.3, 4500,"1100oo 6.06.09", "молоковоз"),
new SpecialCargoTransport("Камаз", 39.0, 8000, 9.0, 8000,"1251ea 07.04.05", "лесовоз"),
};
Console.WriteLine(new string('=', 120));
foreach (var trans in transports)
Console.WriteLine(trans?.ToString());
Console.WriteLine(new string('=', 120));
transports.Sort();
foreach (Transport a in transports)
Console.WriteLine(a);
}
}
} |
|
осталось лишь
Отсортировать список транспортных средств по убыванию коэффициента полезности
Упорядочить список по видам транспортных средств: сначала грузовые специализированные, потом пассажирские и в конце - грузовые универсальные
Вывести только пассажирские транспортные средства с максимальной допустимой массой, не превышающей 3500 к
Добавлено через 14 часов 5 минут
Можно ли использовать метод описанный з здесь
Добавлено через 9 часов 31 минуту
Возможно кому понадобится
2 сортировка не такая, а звучит так
отсортировать список транспортных средств по убыванию по макс. допустимой массе. Я использовал анонимный метод
в теле класса Transport | C# | 1
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| public int SortByWeightAscending(int weight1,int weight2)
{
return weight1.CompareTo(weight2);
} |
|
в main | C# | 1
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| transports.Sort(delegate (Transport x, Transport y)
{
if (x.Weight == 0 && y.Weight == 0) return 0;
else if (x.Weight == 0) return 1;
else if (y.Weight == 0) return -1;
else return y.Weight.CompareTo(x.Weight);
});
Console.WriteLine("\nAfter sort by Weight:");
foreach (Transport transWeight in transports)
{
Console.WriteLine(transWeight);
} |
|
Вроде бы все сделал, выкладываю работу на обозрение и критику(приветствуется)
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| using System;
using System.Collections.Generic;
using System.Linq;
namespace Program
{
public class Comparer : IComparer<Transport>
{
int IComparer<Transport>.Compare(Transport x, Transport y)
{
return (x.GetType() == y.GetType()) ? 0 : (x is SpecialCargoTransport && (y is PassengerTransport | y is CargoTransport)
|| (x is CargoTransport && y is PassengerTransport)) ? -1 : 1 ;
}
}
class Transport : IComparable<Transport>
{
public string Type { get; private set; }
public string Name { get; private set; }
public double Consumption { get; private set; }
public int Weight { get; private set; }
public Transport() { }
public Transport(string type, string name, double consumption, int weight)
{
Type = type;
Name = name;
Consumption = consumption;
Weight = weight;
}
public override string ToString()//перегружаем метод
{
return $"{Name,12}\t{Consumption}л/100км\t{Weight,6}кг\t";//интерполируем ToString
}
public int SortByWeightAscending(int weight1, int weight2)
{
return weight1.CompareTo(weight2);
}
public int CompareTo(Transport obj)
{
if (Consumption > obj.Consumption)
return 1;
if (Consumption < obj.Consumption)
return -1;
else
return 0;
}
}
class PassengerTransport : Transport
{
public int Quantity { get; private set; }
public PassengerTransport() : base() { }
public PassengerTransport(string type, string name, double consumption, int weight, int quantity)
: base("pc",name, consumption, weight)
{
Quantity = quantity;
}
public override string ToString()//перегружаем метод
{
return base.ToString() + $"{Quantity}мест\t";//интерполируем ToString
}
}
class CargoTransport : Transport
{
public double Space { get; private set; }
public int CargoWeight { get; private set; }
public CargoTransport() : base() { }
public CargoTransport(string type, string name, double consumption, int weight, double space, int cargoWeight)
: base(type,name, consumption, weight)
{
Space = space;
CargoWeight = cargoWeight;
}
public override string ToString()//перегружаем метод
{
return base.ToString() + $"\t{Space}м3\t{CargoWeight}кг\t";//интерполируем ToString
}
}
class SpecialCargoTransport : CargoTransport
{
public string Registration { get; private set; }
public string Specialization { get; private set; }
public SpecialCargoTransport() : base() { }
public SpecialCargoTransport(string type, string name, double consumption, int weight, double space, int cargoWeight,
string registration, string specialization)
: base(type,name, consumption, weight, space, cargoWeight)
{
Registration = registration;
Specialization = specialization;
}
public override string ToString()//перегружаем метод
{
return base.ToString() + $"\t{Registration,15}\t{Specialization,14}";//интерполируем ToString
}
}
class MainClass
{
static void Main()
{
var transports = new List<Transport>//создаем список
{
new PassengerTransport("pc","Газель", 17.5, 3500, 14),
new PassengerTransport("pc","Баргузин", 13.3, 2800, 14),
new PassengerTransport("pc","Toyota", 20.7, 3170, 30),
new PassengerTransport("pc","Hyundai", 37.3, 10400, 78),
new CargoTransport("cc","Камаз", 34.0, 7080, 8.0, 8000),
new CargoTransport("cc","Маз", 29.7, 5500, 3.0, 4500),
new CargoTransport("cc","Volvo FM", 21.0, 10900, 10.0, 11000),
new CargoTransport("cc","Renault", 22.0, 12000, 10.8, 11800),
new SpecialCargoTransport("sc","Volvo FM", 21.0, 11000, 10.1, 5000,"4587po 12.12.12", "рефрижиратор"),
new SpecialCargoTransport("sc","Volvo FN", 30.5, 16000, 8.0, 15000,"4521kg 4.03.15", "миксер"),
new SpecialCargoTransport("sc","Маз", 29.7, 5500, 4.3, 4500,"1100oo 6.06.09", "молоковоз"),
new SpecialCargoTransport("sc","Камаз", 39.0, 8000, 9.0, 8000,"1251ea 07.04.05", "лесовоз"),
};
Console.WriteLine(new string('=', 120));
foreach (var trans in transports)
Console.WriteLine(trans?.ToString());//вывод изначального списка
Console.WriteLine(new string('=', 120));
Console.WriteLine("\nAfter sort by Consumption:");
transports.Sort();
foreach (Transport a in transports)
Console.WriteLine(a);//сортировка по возрастанию расхода топлива
transports.Sort(delegate (Transport x, Transport y)//тело метода сортировки по массе
{
if (x.Weight == 0 && y.Weight == 0) return 0;
else if (x.Weight == 0) return 1;
else if (y.Weight == 0) return -1;
else return y.Weight.CompareTo(x.Weight);
});
Console.WriteLine(new string('=', 120));
Console.WriteLine("\nAfter sort by Weight:");
foreach (Transport transWeight in transports)
{
Console.WriteLine(transWeight);//сортировка по макс. весу убывание
}
Console.WriteLine(new string('=', 120));
transports.Sort(new Comparer());
foreach (Transport viev in transports)
Console.WriteLine(viev.ToString());
Console.WriteLine(new string('=', 120));
var selectedCars = from car in transports
where car.Type =="pc"
where car.Weight < 3500
select car;
foreach (Transport car in selectedCars)
Console.WriteLine(car.ToString());
Console.WriteLine(new string('=', 120));
Console.ReadLine();
}
}
} |
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