using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Testing Func Method");

        Class1 cls = new Class1();

        cls.Test();

        cls.RunTheMethodUsingAction( () => {   cls.actionMethod("input string example");  }  );

    }

}

​

public class Class1

{

    public int Method1(string input)

    {

        //... do something

        Console.WriteLine($"{input} called from Method 1");

        return 0;

    }

​

    public int Method2(string input)

    {

        //... do something different

        Console.WriteLine($"{input} called from Method 2");

        return 1;

    }

​

    public bool RunTheMethodUsingFunc(Func<string, int> myMethodName)

    {

        //... do stuff

        int i = myMethodName("My String");

        //... do more stuff

        return true;

    }

​

    public bool Test()

    {

        return RunTheMethodUsingFunc(Method1);

    }

    public void actionMethod(string s){

    Console.WriteLine("Action Method executed with string = " + s);

    }

    public bool RunTheMethodUsingAction(Action actn)

    {

        actn();

        return true;

    }

}