C#•2y ago

✅ need help converting "y" or "n" response to boolean "true" or "false" in .NET 7

Hello, I have written about 3500+ lines of code, I need to make it so the user input of "y" or "n" is converted to boolean "true" or "false", would it be possible to make these conversions before the entire code? my code works perfectly, though I have to use "true" or "false" instead of "y" or "n", so it would be preferable if I had it converted or parsed before the important lines of code. as mentioned, I am using .NET 7 and I am rather new to programming in general, C# is my first programming language and I have been coding in C# for about 1 month now.

55 Replies

Angius•2y ago

You can do that with an if statement, for example

var input = Console.ReadLine();
var someBool;
if (input == "y")
{
    someBool = true;
}
else if (input == "n")
{
     someBool = false; 
}
else
{
    // what to do when the input is neither `y` nor `n`?
}

var input = Console.ReadLine();
var someBool;
if (input == "y")
{
    someBool = true;
}
else if (input == "n")
{
     someBool = false; 
}
else
{
    // what to do when the input is neither `y` nor `n`?
}

CryOP•2y ago

I see, I will try this out, for a more detailed explanation about my case is: I am trying to code a program which allows me to select a choice between 8 ice cream flavors, there are also extra toppings and all that. I need to make it so when it asks me if I would like extra whip cream, I can respond with a simple "y" or "n" answer so if it would be possible to put this If statement before all the other lines of code.

Angius•2y ago

Well, you can turn it into a method so it's reusable

CryOP•2y ago

how so?

Aokiri 🐸•2y ago

You can, also, clean that code using verbatim strings. Like @$"All the text with any lines and etc"

Angius•2y ago

For example,

static bool Ask()
{
    var input = Console.ReadLine();
    if (input == "y")
    {
        return true;
    }
    else if (input == "n")
    {
         return false;
    }
    else
    {
        // what to return when the input is neither `y` nor `n`?
    }
}

var a = Ask();
var b = Ask();
var c = Ask();

static bool Ask()
{
    var input = Console.ReadLine();
    if (input == "y")
    {
        return true;
    }
    else if (input == "n")
    {
         return false;
    }
    else
    {
        // what to return when the input is neither `y` nor `n`?
    }
}

var a = Ask();
var b = Ask();
var c = Ask();

CryOP•2y ago

I do not know what those are, my professor does not recommend us to use material that we have not yet learned

Aokiri 🐸•2y ago

Oh, ok.

Angius•2y ago

Raw strings would be better, but sure

CryOP•2y ago

what does static and the end lines do?

Angius•2y ago

static just means the method doesn't need an instance of an object Since you're writing top-level code you might not even need that What do you mean by "end lines"?

CryOP•2y ago

the last 3 lines of code

Angius•2y ago

Three variables That get the value from the Ask() method

CryOP•2y ago

I see

Angius•2y ago

Console.WriteLine("Do you want whipped cream?");
bool shouldAddWhippedCream = Ask();
if (shouldAddWhippedCream)
{
    Console.WriteLine("Yes, please");
}
else
{
    Console.WriteLine("No, thank you.");
}

Console.WriteLine("Do you want whipped cream?");
bool shouldAddWhippedCream = Ask();
if (shouldAddWhippedCream)
{
    Console.WriteLine("Yes, please");
}
else
{
    Console.WriteLine("No, thank you.");
}

CryOP•2y ago

I see should I give you an example of the first flavor's calculation?

Angius•2y ago

Sure

CryOP•2y ago

message.txt

Angius•2y ago

Yeah, you would replace your bool.Parse(Console.ReadLine()) with that Ask() method call Also, it would be better to flatten your code instead of nesting it infinitely Ask for sauce once, save the result in a variable Ask for whipped cream once, save it in a variable Then, sum it all up at the end

CryOP•2y ago

this is what happens when I run the code

CryOP•2y ago

as you can see, I use "false" instead of "n" I see, well, that would take quite a long time haha

Angius•2y ago

Which is why I said to flatten the code Instead of having an exponential amount of branches

Jimmacle•2y ago

i refuse to believe your professor expects you to write code that KEKW

CryOP•2y ago

that would be best, though at my level, I can not do such a thing, since I have recently learned about how switches and swaps work

Angius•2y ago

You absolutely can You have all the knowledge needed

CryOP•2y ago

it is quite hard to get a rough estimate of my C# knowledge, since I only study what I am taught in school would it be okay to just copy your code and paste it multiple times in my code's branches?

Angius•2y ago

Pseudocode:

decimal price = 0.0m;

if (ask('want sprinkles?'))
    price += sprinkles_price;

if (ask('want sauce?'))
    price += sauce_price;

if (ask('want cream?'))
    price += cream_price;

decimal price = 0.0m;

if (ask('want sprinkles?'))
    price += sprinkles_price;

if (ask('want sauce?'))
    price += sauce_price;

if (ask('want cream?'))
    price += cream_price;

Jimmacle•2y ago

yeah, your code has a serious amount of redundant branches nesting conditions that don't depend on each other

Angius•2y ago

If you're averse to using methods, then sure

CryOP•2y ago

the problem with this is that we still have not learned about the "ask" thing

Angius•2y ago

So, about methods?

CryOP•2y ago

all of my other classmate's code is also pretty big, well, mine is the smallest one so far

Jimmacle•2y ago

that's...

CryOP•2y ago

there is this one guy that has 1200 lines of code just for the vanilla flavor

Jimmacle•2y ago

i mean, that's good that you're the best, but there's a lot more that can be done to shorten it 3500 lines for a menu with 6 choices is insane

CryOP•2y ago

yeah, that is true, though my professor insists on writing it with the resources that we are taught in school well 8 choices then 1 questions another question another question another question = sum of the bill

Jimmacle•2y ago

exactly

Angius•2y ago

Yep Don't nest the questions

Jimmacle•2y ago

that should be like a couple hundred lines at most

CryOP•2y ago

that is what I have thought as well but it turned out pretty big

Jimmacle•2y ago

even without methods, look at what zzzzz is suggesting about not nesting things that don't need to be nested generally if you find yourself copying and pasting the same thing a lot something is wrong

CryOP•2y ago

yeah, that is true though even my professor has told me that we are 2 weeks behind material, since he was sick for a whole week + other things happened

Jimmacle•2y ago

sounds like your professor might not be that great, which honestly isn't uncommon

CryOP•2y ago

so the things that you guys are showing me is pretty new 95% of the people hate him

Angius•2y ago

Is it new? Not-nested code is a step below what you wrote tbh

CryOP•2y ago

It is currently 11 pm at my place, I have been writing this code for over 4 hours, it works but not how I intended it to work

Jimmacle•2y ago

anyway, start by looking at all your conditions and only put conditions inside other conditions if the code is actually different based on the outer condition

CryOP•2y ago

it depends on how the learning material is presented

Angius•2y ago

Less code means it's easier to find errors

Jimmacle•2y ago

if you're doing the same thing in both branches of a condition, it shouldn't be inside the condition at all

CryOP•2y ago

I see well, this task was optional, only a few of my classmates have tried it, I am the first one to finish it fully it is the most difficult task we have been given so far I thank you guys for helping me out, I shall try the methods that you have suggested to me.

Angius•2y ago

Here's a more direct example should you need it

Angius•2y ago

Not complete, not as complex as what you need, but should give you a direction if necessary

CryOP•2y ago

oh I see, I believe that this would help me a lot, I will try to rewrite my code using this method after submitting my 1st attempt.

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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✅ need help converting "y" or "n" response to boolean "true" or "false" in .NET 7

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