Calculator Transforming Coulomb units freezes unexpletedly

    internal class Program
    {
        static void Main(string[] args)
        {
            double result = 0;
            Console.WriteLine("Welcome to the Physics calculator!");
            Console.WriteLine("Please choose one of the following options");
            Console.WriteLine("1.Unit Conversions");
            Console.WriteLine();
            Console.WriteLine("What is the current form of the number you are trying to convert?");
            Console.WriteLine("1.Coulomb");
            Console.WriteLine("2.mCoulomb");
            Console.WriteLine("3.μCoulomb");
            Console.WriteLine("4.nCoulomb");
            Console.WriteLine("5.pCoulomb");
            string answer1 = Console.ReadLine();
            double answerbase = 0;
            double answerpow = 0;
            switch (answer1)
            {
                case "1":
                    Console.WriteLine("Please continue to the next part");
                    answerbase = Convert.ToDouble(Console.ReadLine());
                    break;
                case "2":
                    Console.WriteLine("Please enter the number: ");
                    answerbase = Convert.ToDouble(Console.ReadLine());
                    break;
                case "3":
                    Console.WriteLine("Please enter the number: ");
                    answerbase = Convert.ToDouble(Console.ReadLine());
                    break;
                case "4":
                    Console.WriteLine("Please enter the number: ");
                    answerbase = Convert.ToDouble(Console.ReadLine());
                    break;
                case "5":
                    Console.WriteLine("Please enter the number: ");
                    answerbase = Convert.ToDouble(Console.ReadLine());
                    break;
                default:
                    Console.WriteLine("That is not a valid option!");
                    break;
            }
            Console.WriteLine("In which for would you like to convert your number?");
            Console.WriteLine("Choose one of the following options");
            Console.WriteLine("1.Coulomb");
            Console.WriteLine("2.mCoulomb");
            Console.WriteLine("3.μCoulomb");
            Console.WriteLine("4.nCoulomb");
            Console.WriteLine("5.pCoulomb");
            string answer2 = Console.ReadLine();
            //Console.WriteLine("Please input your number");
            //double answer3 = Convert.ToDouble(Console.ReadLine());
            double resultconversion = 0;
            while (answer1 == "1")
            {
                if (answer1 == answer2)
                {
                    Console.WriteLine("No conversion neeeded!");
                }
                else if (answer1 != answer2)
                {
                    switch (answer2)
                    {
                        case "2":
                            answerpow = 10 ^ -3;
                            resultconversion = Math.Pow(answerbase, answerpow);
                            break;
                        case "3":
                            answerpow = 10 ^ -6;
                            resultconversion = Math.Pow(answerbase, answerpow);
                            break;
                        case "4":
                            answerpow = 10 ^ -9;
                            resultconversion = Math.Pow(answerbase, answerpow);

                            break;
                        case "5":
                            answerpow = 10 ^ -12;
                            resultconversion = Math.Pow(answerbase, answerpow);
                            break;
                    }
                }
            }
                while(answer1 == "2") 
                {
                    if (answer1 == answer2)
                    {
                        Console.WriteLine("No conversion needed");
                    }
                    else if (answer1 != answer2)

                    switch (answer2) //line 107
                    {
                        case "1":
                            answerpow = 10 ^ 3;
                            resultconversion = answerbase/(10 ^ 3);
                            break;
                        case "3":
                            answerpow = 10 ^ 6;
                            resultconversion = Math.Pow(answerbase, answerpow);
                            break;
                        case "4":
                            answerpow = 10 ^ 9;
                            resultconversion = Math.Pow(answerbase, answerpow);
                            break;
                        case "5":
                            answerpow = 10 ^ 12;
                            resultconversion = Math.Pow(answerbase, answerpow);
                            break;
                    }
                      
                }
            Console.WriteLine($"The result in an int form: {answerbase}^{answerpow}");
            Console.WriteLine($"The number {answerbase} is raised to the power of {answerpow}");
            Console.WriteLine("The result in decimal for: " + resultconversion);

        }
    }

The problem that I face is that when I reach line 107 my code freezes and nothing happens. I am not sure what’s happening. Please note that the code is incomplete and the working functions as of right now are only the first and half of the second. I am a beginner and I would appreciate if you would not critisise me for not discovering the problem.

I added a while loop so for each answer specific things would happen. But inside the second while loop something seems to be broken inside the first switch case at line 107. When I input the form of the current number as mCoulomb and the form I am trying to convert it to Coulomb the program just freezes.

>Solution :

The problem is simple, you have a while loop on answer1 but you are not modifying it anywhere in your code. and that is the reason it is becoming an infinite loop. you can either add a break at the end of each while loop (you need to check this first). so modify the answer1 so that it may come out of the loop.