static void printResult(string action, RationalNumber myNum)
 {
     myNum.Simplify();
     Console.WriteLine();
     Console.WriteLine(action);
     Console.WriteLine(myNum.ToString());
     Console.WriteLine(myNum.ToString("whole part"));
     Console.WriteLine(myNum.ToString("decimal"));
     Console.WriteLine(myNum.ToString("decimal1"));
     Console.WriteLine(myNum.ToString("decimal2"));
     Console.WriteLine(myNum.ToString("decimal3"));
     Console.WriteLine(myNum.ToString("decimal4"));
     Console.WriteLine(myNum.ToString("decimal5"));
 }
        static void Main(string[] args)
        {
            switchStatement state             = switchStatement.Initial;
            RationalNumber  MyRationalNumber1 = new RationalNumber(1, 1);
            RationalNumber  MyRationalNumber2 = new RationalNumber(1, 1);

            while (true)
            {
                switch (state)
                {
                case (switchStatement.Initial):
                    Console.WriteLine();
                    Console.WriteLine("0 - Exit");
                    Console.WriteLine("1 - Enter Numbers, Entering Numerator & Denominator");
                    Console.WriteLine("2 - Enter Numbers, Entering Like A String (1 / 5) || (-1 / 5) || 0.2");
                    Console.Write("Your Choice: ");
                    string input = Console.ReadLine();
                    Console.WriteLine();
                    bool tempBoolForParsingStr = true;
                    switch (input)
                    {
                    case ("0"):
                    {
                        Console.WriteLine("BB.");
                        return;
                    }

                    case ("1"):
                    {
                        Console.WriteLine("Enter First Rational Number: ");
                        MyRationalNumber1 = new RationalNumber(getNumerator(), getDenominator());
                        Console.WriteLine();
                        Console.WriteLine("Second Rational Number: ");
                        MyRationalNumber2 = new RationalNumber(getNumerator(), getDenominator());
                        Console.WriteLine();
                        MyRationalNumber1.Simplify();
                        MyRationalNumber2.Simplify();
                        state = switchStatement.NumsAreReady;
                        break;
                    }

                    case ("2"):
                        while (tempBoolForParsingStr)
                        {
                            Console.Write("Enter First Rational Number: ");
                            string first = Console.ReadLine();
                            try
                            {
                                MyRationalNumber1     = new RationalNumber(first);
                                tempBoolForParsingStr = false;
                            }
                            catch (Exception)
                            {
                                Console.WriteLine("RedNeck.");
                            }

                            Console.WriteLine();
                        }

                        tempBoolForParsingStr = true;
                        while (tempBoolForParsingStr)
                        {
                            Console.Write("Second Rational Number: ");
                            string second = Console.ReadLine();
                            try
                            {
                                MyRationalNumber2     = new RationalNumber(second);
                                tempBoolForParsingStr = false;
                            }
                            catch (Exception)
                            {
                                Console.WriteLine("RedNeck.");
                            }

                            Console.WriteLine();
                        }

                        MyRationalNumber1.Simplify();
                        MyRationalNumber2.Simplify();
                        state = switchStatement.NumsAreReady;
                        break;

                    default:
                        Console.WriteLine("RedNeck.");
                        break;
                    }

                    break;

                case (switchStatement.NumsAreReady):
                    Console.WriteLine();
                    Console.WriteLine("0 - Exit");
                    Console.WriteLine("1 - Info About Numbers");
                    Console.WriteLine("2 - Unary Operations For First Number");
                    Console.WriteLine("3 - Unary Operations For Second Number");
                    Console.WriteLine("4 - Binary Operations");
                    Console.WriteLine("5 - Casting Operations");
                    Console.WriteLine("6 - Array Sorter");
                    Console.WriteLine("7 - List Sorter");
                    Console.WriteLine("8 - Equals VS ==");
                    Console.WriteLine();
                    Console.Write("Your Choice: ");
                    string userInput = Console.ReadLine();
                    switch (userInput)
                    {
                    case ("0"):
                        Console.WriteLine("BB.");
                        return;

                    case ("1"):
                        printResult("First Number", MyRationalNumber1);
                        printResult("Second Number", MyRationalNumber2);
                        break;

                    case ("2"):
                        printResult("Unary + For First Number", +MyRationalNumber1);
                        printResult("Unary - For First Number", -MyRationalNumber1);
                        break;

                    case ("3"):
                        printResult("Unary + For Second Number", +MyRationalNumber2);
                        printResult("Unary - For Second Number", -MyRationalNumber2);
                        break;

                    case ("4"):
                        bool tempState = true;
                        while (tempState)
                        {
                            Console.WriteLine();
                            Console.WriteLine("Enter Action(+, -, /, *, <, >, <=, >=, ==, !=)");
                            if (getAction())
                            {
                                tempState = false;
                            }
                            else
                            {
                                Console.WriteLine("RedNeck.");
                                Console.WriteLine();
                            }
                        }

                        switch (statement)
                        {
                        case (MathAction.Plus):
                            printResult("First + Second", MyRationalNumber1 + MyRationalNumber2);
                            break;

                        case (MathAction.Minus):
                            printResult("First - Second", MyRationalNumber1 - MyRationalNumber2);
                            break;

                        case (MathAction.Divide):
                            printResult("First / Second", MyRationalNumber1 / MyRationalNumber2);
                            break;

                        case (MathAction.Multiply):
                            printResult("First * Second", MyRationalNumber1 * MyRationalNumber2);
                            break;

                        case (MathAction.GreaterOrEqual):
                            printResult("First >= Second", MyRationalNumber1 >= MyRationalNumber2);
                            break;

                        case (MathAction.LessOrEqual):
                            printResult("First <= Second", MyRationalNumber1 <= MyRationalNumber2);
                            break;

                        case (MathAction.Greater):
                            printResult("First > Second", MyRationalNumber1 > MyRationalNumber2);
                            break;

                        case (MathAction.Less):
                            printResult("First < Second", MyRationalNumber1 < MyRationalNumber2);
                            break;

                        case (MathAction.Equal):
                            printResult("First == Second", MyRationalNumber1 == MyRationalNumber2);
                            break;

                        case (MathAction.NotEqual):
                            printResult("First != Second", MyRationalNumber1 != MyRationalNumber2);
                            break;
                        }

                        break;

                    case ("5"):
                        bool tempForCastWhile = true;
                        while (tempForCastWhile)
                        {
                            Console.WriteLine("0 - Back");
                            Console.WriteLine("1 - Cast Rational Number From Float");
                            Console.WriteLine("2 - Cast Float From Rational Number");
                            Console.WriteLine();
                            Console.Write("Your Choice: ");
                            string tempForCast = Console.ReadLine();
                            switch (tempForCast)
                            {
                            case ("0"):
                                tempForCastWhile = false;
                                break;

                            case ("1"):
                                bool    tempBoolCast = true;
                                decimal castValue    = 0;
                                string  test;
                                Console.WriteLine();
                                while (tempBoolCast)
                                {
                                    try
                                    {
                                        Console.Write("Enter Float Value (3.4, -5.078, 8.123456): ");
                                        //castValue = Convert.ToSingle(Console.ReadLine());
                                        test = Console.ReadLine();
                                        if (test.Contains(","))
                                        {
                                            throw new FormatException("RedNeck, ',' Is Not Allowed.");
                                        }

                                        castValue    = Convert.ToDecimal(test);
                                        tempBoolCast = false;
                                    }
                                    catch (FormatException)
                                    {
                                        Console.WriteLine();
                                        Console.WriteLine("RedNeck.");
                                    }
                                }

                                RationalNumber cast = new RationalNumber(castValue);
                                cast.Simplify();
                                printResult($"From {castValue} Float To Rational: ", cast);
                                break;

                            case ("2"):
                                Console.WriteLine();
                                Console.WriteLine("Enter Rational Number: ");
                                RationalNumber tempRnForCast =
                                    new RationalNumber(getNumerator(), getDenominator());
                                Console.WriteLine();
                                float tempRnForCastInFloat = tempRnForCast;
                                Console.WriteLine(
                                    $"Your Rational Number In Float: {tempRnForCastInFloat.ToString()}");
                                break;

                            default:
                                Console.WriteLine("RedNeck.");
                                Console.WriteLine();
                                break;
                            }
                        }

                        break;

                    case ("6"):
                        RationalNumber[] rationalNumbersArray = Array.Empty <RationalNumber>();
                        var  rationalNumbersListForArray      = new List <RationalNumber>();
                        bool stateForArraySort = true;
                        Console.WriteLine();
                        while (stateForArraySort)
                        {
                            Console.WriteLine("0 - Back");
                            Console.WriteLine("1 - Add Element");
                            Console.WriteLine("2 - Info About Array");
                            Console.WriteLine("3 - Sort Array");
                            Console.Write("Your Choice: ");
                            string tempStringForArray = Console.ReadLine();
                            switch (tempStringForArray)
                            {
                            case ("0"):
                                stateForArraySort = false;
                                break;

                            case ("1"):
                                Console.WriteLine();
                                Console.Write("Enter A Rational Number(1 / 4 || 2 / 5 || -3/98, etc.): ");
                                string tempRN = Console.ReadLine();
                                // RationalNumber numberToAdd = ;
                                rationalNumbersListForArray.Add(new RationalNumber(tempRN));
                                rationalNumbersArray = rationalNumbersListForArray.ToArray();
                                break;

                            case ("2"):
                                for (int index = 0; index < rationalNumbersArray.Length; index++)
                                {
                                    printResult($"Index: {index}, Number: ", rationalNumbersArray[index]);
                                }

                                break;

                            case ("3"):
                                Array.Sort(rationalNumbersArray, new RationalNumber(1, 1));
                                //doesn't work. maybe need to implement compare in another class...
                                break;

                            default:
                                Console.WriteLine("RedNeck.");
                                Console.WriteLine();
                                break;
                            }
                        }

                        break;

                    case ("7"):
                        var  rationalNumbersList = new List <RationalNumber>();
                        bool stateForListSort    = true;
                        Console.WriteLine();
                        while (stateForListSort)
                        {
                            Console.WriteLine("0 - Back");
                            Console.WriteLine("1 - Add Element");
                            Console.WriteLine("2 - Info About List");
                            Console.WriteLine("3 - Sort List");
                            Console.Write("Your Choice: ");
                            string tempStringForList = Console.ReadLine();
                            switch (tempStringForList)
                            {
                            case ("0"):
                                stateForListSort = false;
                                break;

                            case ("1"):
                                Console.WriteLine();
                                Console.Write("Enter A Rational Number(1 / 4 || 2 / 5 || -3/98, etc.): ");
                                string tempRN = Console.ReadLine();
                                rationalNumbersList.Add(new RationalNumber(tempRN));
                                break;

                            case ("2"):
                                for (int index = 0; index < rationalNumbersList.Count; index++)
                                {
                                    printResult($"Index: {index}, Number: ", rationalNumbersList[index]);
                                }

                                break;

                            case ("3"):
                                rationalNumbersList.Sort();
                                break;

                            default:
                                Console.WriteLine("RedNeck.");
                                Console.WriteLine();
                                break;
                            }
                        }

                        break;

                    case ("8"):
                        CompareEqualsVSDoubleEqual(MyRationalNumber1);
                        break;

                    default:
                        Console.WriteLine("RedNeck.");
                        break;
                    }

                    break;
                }
            }
        }