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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. namespace doglist
  6. {
  7.  
  8.     public class DogClass
  9.     {
  10.         private static int iddog;
  11.         public int Iddog { get; set; }
  12.         public string Name { get; set; }
  13.         public string Breed { get; set; }
  14.         public bool IsBitch { get; set; }
  15.         public int Age { get; set; }
  16.  
  17.         public DogClass()
  18.         {
  19.             Iddog = iddog++;
  20.         }
  21.  
  22.         // static constructor to set isddog
  23.         static DogClass()
  24.         {
  25.             iddog = 0;
  26.         }
  27.  
  28.         public override string ToString()
  29.         {
  30.             return Name+'('+Iddog+") "+Breed + (IsBitch ?" B ":" D ") + "Age="+Age;
  31.         }
  32.     }
  33.  
  34.     public class DogList
  35.     {
  36.         private readonly List<DogClass> dogs;
  37.         public List<DogClass> Dogs
  38.         {
  39.             get { return dogs; }
  40.         }
  41.  
  42.         public int Count
  43.         {
  44.             get
  45.             {
  46.                 return dogs.Count;
  47.             }
  48.         }
  49.  
  50.         public DogClass this[int i]
  51.         {
  52.             get
  53.             {
  54.                 return dogs[i];
  55.             }
  56.         }
  57.  
  58.         public void AddDog(DogClass dog)
  59.         {
  60.             dogs.Add(dog);
  61.         }
  62.  
  63.         public void RemoveDog(DogClass dog)
  64.         {
  65.             dogs.Remove(dog);
  66.         }
  67.  
  68.         public DogClass FindDog(int iddog)
  69.         {
  70.             return dogs.FirstOrDefault(Dog => Dog.Iddog == iddog);
  71.         }
  72.  
  73.         public DogList()
  74.         {
  75.             dogs = new List<DogClass> {};
  76.             dogs.Capacity = 20;
  77.         }
  78.  
  79.         public void ClearList()
  80.         {
  81.             dogs.Clear();
  82.         }
  83.  
  84.         // LINQ version of
  85.         // foreach (var d in dogs)
  86.         //     yield return d;
  87.         public IEnumerator<DogClass> GetEnumerator()
  88.         {
  89.             return ((IEnumerable<DogClass>) dogs).GetEnumerator();
  90.         }
  91.  
  92.         public int MySortFunction(DogClass dog1, DogClass dog2)
  93.         {
  94.             return dog1.Name.CompareTo(dog2.Name);
  95.         }
  96.  
  97.         public void Sort()
  98.         {
  99.             dogs.Sort(MySortFunction);
  100.         }
  101.     } 
  102.  
  103.  
  104.  
  105.     class Program
  106.     {
  107.         static void Main(string[] args)
  108.         {
  109.             var dogs = new DogList();
  110.             dogs.AddDog(new DogClass(){Name=@"Rufus",Breed="Minature Poodle",IsBitch = false,Age=4});
  111.             dogs.AddDog(new DogClass() {Name = @"Monty", Breed = "Minature Poodle", IsBitch = false,Age=5 });
  112.             dogs.AddDog(new DogClass() { Name = @"Sam", Breed = "Standard Poodle", IsBitch = false,Age=12 });
  113.             dogs.AddDog(new DogClass() { Name = @"Judy", Breed = "Afghanistan", IsBitch = true,Age=3 });
  114.  
  115.             var dog = dogs.FindDog(2);
  116.             Console.WriteLine("Dog 2 is {0}",dog);
  117.             Console.WriteLine("There are {0} dogs",dogs.Count);
  118.  
  119.             Console.WriteLine("Dog[1] is {0}", dogs[1]);
  120.             //dogs.Dogs.RemoveAll(adog => adog.IsBitch == false);
  121.  
  122.             var averagAge = 0;
  123.             foreach (var adog in dogs)
  124.             {
  125.                 averagAge += adog.Age;
  126.             }
  127.             Console.WriteLine("Average age is {0}", averagAge/dogs.Count);
  128.  
  129.             dogs.Sort();
  130.  
  131.             Console.WriteLine("Male Dogs in alphaberic order by name");
  132.             foreach (var dog1 in dogs)
  133.             {
  134.                 if (!dog1.IsBitch)
  135.                 {
  136.                     Console.WriteLine(dog1);
  137.                 }
  138.             }
  139.             Console.ReadKey();
  140.         }
  141.     }
  142. }
  143.  
Success #stdin #stdout 0.07s 34096KB
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Dog 2 is Sam(2) Standard Poodle D Age=12
There are 4 dogs
Dog[1] is Monty(1) Minature Poodle D Age=5
Average age is 6
Male Dogs in alphaberic order by name
Monty(1) Minature Poodle D Age=5
Rufus(0) Minature Poodle D Age=4
Sam(2) Standard Poodle D Age=12
https://ideone.com/eoTyuE
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
secret

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