KeepRecordOfEmployees

using System;

class KeepRecordOfEmployees
{
    static void Main()
    {
        //A marketing firm wants to keep record of its employees. Each record would have the following              characteristics – first name, family name, age, gender (m or f), ID number, unique employee number        (27560000 to 27569999). Declare the variables needed to keep the information for a single                   employee using appropriate data types and descriptive names.

        Console.WriteLine("PLease enter first name ");
        string firstName = Console.ReadLine();
        Console.WriteLine("PLease enter family name ");
        string familyName = Console.ReadLine();

        byte age;
        bool isNum;
        // Checking for correct age
        while (true)
        {
            Console.Write("Please enter your age : ");
            string num = Console.ReadLine();
            isNum = byte.TryParse(num, out age); //Try to convert string to byte

            if (isNum == false) //If age is incorrect
            {
                Console.WriteLine("Please, enter correct age !");
                continue; // Return at the beginning
            }
            else // If age is correct
            {
                age = byte.Parse(num);
                break; // Stop while cycle
            }
        }

        char gender;
        bool genderCheck;
        // Checking for correct gender
        while (true)
        {
            Console.WriteLine("Enter your gender [m] or [f] ");
            string genderString = Console.ReadLine();
            genderCheck = char.TryParse(genderString, out gender); //Try to parse string to char
            if (genderCheck) // If gender is correct (genderCheck = true)
            {
                gender = char.Parse(genderString); // Convert string to char
                             // m               //M               //f               //F
                if (gender == 0x6D || gender == 0x4D || gender == 0x66 || gender == 0x46)
                {
                    break; // Exit form while cycle
                }
            }
        }

        Console.WriteLine("Enter your ID Number");
        string idNumber = Console.ReadLine();
        int uniqueEmployeNumber;
        while (true)
        {
            Console.WriteLine("Please, enter \"Unique Employe Number\" between 27560000 and 27569999");
            uniqueEmployeNumber = int.Parse(Console.ReadLine());
            // If ID Number is not between 27560000 and 27569999 continue (Return at the beginning)
            if (uniqueEmployeNumber < 27560000 || uniqueEmployeNumber > 27569999)
            {
                continue;
            }
            else
            {
                break; // Exit from while cycle
            }
        }
        //---------------------------------* Print *----------------------------------------
        Console.WriteLine();
        Console.WriteLine("First name: {0}",firstName);
        Console.WriteLine("Family name: {0}", familyName);
        Console.WriteLine("Age: {0}",age);
        Console.WriteLine("Gender: {0}",gender);
        Console.WriteLine("ID number: {0}",idNumber);
        Console.WriteLine("Employee number: {0}", uniqueEmployeNumber);
    }
}