Calculator Transforming Coulomb units freezes unexpletedly-CodePudding

    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.

CodePudding user response：

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). or modify the answer1 so that it may come out of the loop.

CodePudding user response：

Vivek's answer is correct as to what's happening in your program. You should mark his answer as correct.

I'm posting this as a way for you to see how this code can get written.

string unit = "Coulomb";
var factors = new[]
{
    new { name = "", magnitude = 0 },
    new { name = "m", magnitude = -3 },
    new { name = "μ", magnitude = -6 },
    new { name = "n", magnitude = -9 },
    new { name = "p", magnitude = -12 },
};

string[] header1 = new string[] { "Welcome to the Physics calculator!", "Please choose one of the following options", "1.Unit Conversions", "", "What is the current form of the number you are trying to convert?", };
string[] header2 = new string[] { "In which for would you like to convert your number?", "Choose one of the following options", };

int GetFactorIndex(string[] header)
{
    Console.WriteLine(String.Join(Environment.NewLine, header.Concat(factors.Select((x, n) => $"{n   1}. {x.name}{unit}"))));
    return int.Parse(Console.ReadLine()) - 1;
}

int index1 = GetFactorIndex(header1);
Console.WriteLine("Please enter the number: ");
double value = double.Parse(Console.ReadLine());
int index2 = GetFactorIndex(header1);

int magnitude = factors[index1].magnitude - factors[index2].magnitude;

double factor = Math.Pow(10.0, magnitude);
double answer = value * factor;

Console.WriteLine($"The number {value} {factors[index1].name}{unit} is multiplied by {factor}");
Console.WriteLine($"The result in value of: {answer} {factors[index2].name}{unit}");

That's it. I think it is working correctly. Let me know if there are any issues you discover.