using System;

​

public delegate int Transform(string text);

public class Program

{

    public static void ShowValue(Transform getValueFunc)

    {

        string s = "Ahoj";

        int value = getValueFunc(s);

        Console.WriteLine($"Řetězec '{s}' má hodnotu {value} jednotek.");

    }

    public static int GetNumberOfCharacters(string myString)

    {

        return myString.Length;

    }

    public static int GetOccurrencesOfA(string searchString)

    {

        int count = 0;

        for (int i = 0; i < searchString.Length; i++)

        {

            if (searchString[i] == 'A')

            {

                count++;

            }

        }

        return count;

    }

    public static int ToHash(string text)

    {

        return text.GetHashCode();

    }

    public static int AlwaysSix(string text)

    {

        return 6;

    }

    public static void Main()

    {

        Transform getVal = new Transform(GetNumberOfCharacters);

        //Transform getVal = GetNumberOfCharacters;

        //Transform getVal = new Transform(GetOccurrencesOfA);

        //Transform getVal = GetOccurrencesOfA;

        //Transform getVal = new Transform(ToHash);

        //Transform getVal = ToHash;

        //Transform getVal = new Transform(AlwaysSix);

        ShowValue(getVal);

    }

}