Hello. I already asked a question with practically the same code, but another problem that I managed to solve successfully, therefore I ask for help a second time. I have 4 classes in the program:

Basic Figure:

class Figure { private List<Figure> figures = new List<Figure>(); public void Add(Figure f) { figures.Add(f); } public string coords = ""; public virtual void getCoords() { } public virtual IEnumerable myItr() { for (int i = 0; i < 8; i++) { yield return "there are must be coords"; } } public static int X; public static int Y; public static int Z; public double SideSize; public string Name; }

And derivatives, Round:

  class Round : Figure { public override IEnumerable myItr() { yield return this.coords; } public Round(int sideSize, int x, int y) { X = x; Y = y; SideSize = sideSize; //getPerimeter(); getCoords(); } }

Cube and Line are identical to the class round

In the main program, when reading from a file in a loop, objects with different parameters are created.

File contents:

 round 10 2 3 round 5 4 6 round 3 5 -1 cube 4 -3 -2 3 cube 3 3 5 -2 cube 7 6 8 9 line 1 1 2 line 6 7 4 line 19 4 9

the program itself:

  static void Main(string[] args) { StreamReader sr = new StreamReader("File.txt"); string text = sr.ReadToEnd(); string[] figuresParam = text.Split(' '); List<Round> rounds = new List<Round>(); List<Cube> cubes = new List<Cube>(); List<Line> lines = new List<Line>(); for (int i = 0, j = 0, c = 0, l = 0, r = 0; i < figuresParam.Length; i += 4, j += 1) { if (figuresParam[i] == "round") { rounds.Add(new Round(Convert.ToInt32(figuresParam[i+1]), Convert.ToInt32(figuresParam[i + 2]), Convert.ToInt32(figuresParam[i+3]))); rounds[r].Name = "round"; r++; }//Аналогично к первому еще два таких же if } Figure figures = new Figure(); int a = 0; for (int i = 0; i < lines.Count; i++) { figures.Add(lines[i]); a++; } for (int i = 0; i < rounds.Count; i++) { figures.Add(rounds[i]); a++; } for (int i = 0; i < cubes.Count; i++) { figures.Add(cubes[i]); a++; } foreach (string s in figures.myItr()) { Console.WriteLine(s); } Console.ReadKey(); }

Foreach should (by my logic) implement iterators that are individual for each derived class, but only the same iterator is executed in the main class. What is the reason for this?

Closed due to the fact that off-topic party Nick Volynkin ♦ 15 Oct '16 at 17:17 .

It seems that this question does not correspond to the subject of the site. Those who voted to close it indicated the following reason:

  • “Questions asking for help with debugging (“ why does this code not work? ”) Should include the desired behavior, a specific problem or error, and a minimum code for playing it right in the question . Questions without an explicit description of the problem are useless for other visitors. See How to create minimal, self-sufficient and reproducible example . " - Nick Volynkin
If the question can be reformulated according to the rules set out in the certificate , edit it .

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    Please remove from the code everything that does not apply to the problem and correct the formatting. Very difficult to read. We need a minimal reproducible example - Pavel Mayorov
  • The reason for closing the emphasis on the words "minimum code". - Nick Volynkin ♦
  • "but for some reason only the same iterator is executed in the main class." - how did you come to this conclusion? - Valera Kvip
  • Step-by-step debug and output in the console showed that everything is exactly as I described - Artem Kichigin
  • @ArtyomKichigin: Reduce the code to a real minimum reproducing the problem. You have 4 classes in the hierarchy - do they need all 4, or just two to show the problem? Do you have methods like getPerimeter - are they important for this question, or will the problem remain if you remove them? The less code you have, the more chances for a good response from an experienced participant. This, by the way, is in your best interest. - VladD

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