lab 6 z2

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace lab_6_z2_csharp
{
    public class Cars : IComparable
    {
        private string mark;
        private string surname;
        public int year;
        public int len;
        public Cars() { }
        public Cars(string m, string s, int y, int l)
        {
            this.mark = m;
            this.surname = s;
            this.year = y;
            this.len = l;
        }

        public override string ToString()   //Преобразование ToString()
        {
            return "" + this.mark + "  " + this.surname + "  " + "  " + year.ToString() + "  " + len.ToString() + "";
        }

        public int CompareTo(object obj)
        {
            Cars temp = obj as Cars;
            if (temp != null)
            {
                if (this.year >= temp.year)
                {
                    return 1;
                }
                if (this.year < temp.year)
                {
                    return -1;
                }
            }
            else
            {
                throw new ArgumentException("Not a Car");

            }
            return -100;
        }

        public static bool operator <(Cars c1, Cars c2)
        {
            bool flag = false;
            int i = c1.CompareTo(c2);
            if (i < 0)
            {
                flag = true;
            }
            return flag;
        }

        public static bool operator >(Cars c1, Cars c2)
        {
            bool flag = false;
            int i = c1.CompareTo(c2);
            if (i >= 0)
            {
                flag = true;
            }
            return flag;
        }
    }

    public class AutoLenComparer : IComparer
    {
        int IComparer.Compare(object o1, object o2)
        {
            Cars t1 = o1 as Cars;
            Cars t2 = o2 as Cars;
            int flag = -1;
            if (t1 != null && t2 != null)
            {
                if (t1.len >= t2.len)
                {
                    flag = 1;
                }
                return flag;
            }
            else
            {
                throw new ArgumentException("Not a Cars");
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            ArrayList list = new ArrayList();
            list.Add(new Cars("Audi R8", "Петров", 2010, 2000));
            list.Add(new Cars("Lambargini", "Сидоров", 2009, 100000));
            list.Add(new Cars("VAZ 2101", "Иванов", 1970, 1000));
            list.Add(new Cars("Chevrolet Lacetti", "Колесников", 2007, 80000));
            list.Add(new Cars("Suzuki Grand Vitara", "Щербакова", 2013, 70000));
            list.Add(new Cars("Renault Logan", "Дыбенко", 2015, 3000));

            Console.WriteLine("Before sort:");
            foreach (Cars i in list)
            {
                Console.WriteLine(i.ToString());
            }

            Cars c = new Cars("*", "*", 2011, 0);
            list.Sort(new AutoLenComparer());
            Console.WriteLine("After sort:");
            foreach (Cars i in list)
            {
                if (i<c)
                Console.WriteLine(i.ToString());
            }

            Console.ReadLine();
        }
    }
}