PasswordValidator/MethodsExericise

using System;

namespace MethodsExercise
{
    class Program
    {
        static void Main(string[] args)
        {
            string password = Console.ReadLine();
            bool isValid = CheckPasswordLength(password) &&
                           CheckTypeOfCharacter(password) &&
                           CheckNumberOfDigits(password);

            if (isValid == true)
            {
                Console.WriteLine("Password is valid");
            }
            else
            {
                if (!CheckPasswordLength(password))
                {
                    Console.WriteLine("Password must be between 6 and 10 characters");
                }
                if (!CheckTypeOfCharacter(password))
                {
                    Console.WriteLine("Password must consist only of letters and digits");
                }
                if (!CheckNumberOfDigits(password))
                {
                    Console.WriteLine("Password must have at least 2 digits");
                }
            }

        }

        private static bool CheckNumberOfDigits(string password)
        {
            int counter = 0;
            foreach (char character in password)
            {
                if (char.IsDigit(character))
                {
                    counter++;
                }
            }

            if (counter >= 2)
            {
                return true;
            }

            return false;
        }

        private static bool CheckTypeOfCharacter(string password)
        {
            foreach (char charackter in password)
            {
                if (!char.IsLetterOrDigit(charackter))
                {
                    return false;
                }

            }

            return true;
        }

        private static bool CheckPasswordLength(string password)
        {
            if (password.Length >= 6 && password.Length <= 10)
            {
                return true;
            }

            return false;
        }
    }
}