C#•14mo ago

how do i get digits of an int?

i want to input a 3 digit int and to be able to print every digit individually

13 Replies

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

if the input is 475 u i want to be able to print every digit alone

Good morning, a quick way to solve this is as so:

int num = 475;
foreach (char digit in num.ToString().ToArray())
{
     Console.WriteLine(digit);
}

int num = 475;
foreach (char digit in num.ToString().ToArray())
{
     Console.WriteLine(digit);
}

Pobiega•14mo ago

The alternative is to use modulo and division in a loop. Harder to reason about, but no string conversion needed

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

I have to keep it as an int I forgot to mention that

Pobiega•14mo ago

then try modulo/div

Florian Voß•14mo ago

@Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa If you struggle I suggest learning about number systems our typical decimal system, is a base 10 number system. you can apply a rule which is true for all number systems, if you keep doing modulo of the base of a number system, which is 10 here, and take the rest of it, you get a signle digit of the number in that respective number system 457 % 10 = 7 457 / 10 = 45 45 % 10 = 5 45 / 10 = 4 4 % 10 = 4 now if we take the solutions of the modulo operations, in other word the Rests of the calculation, and write it from bottom to top, we end up with the solution in desired number system: 457 this works for any number system. If you wanna convert number to binary, take 2 as base instead of 10. If you want to convert to hexadecimal, take 16 as base instead of 10 etc.

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

Oh Before I read this I was close I didn't know how to do the rest after the first one I just did this

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

Thx Now I actually understand

Florian Voß•14mo ago

you're welcome 😊

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

I have another question

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

What's wrong with this?

AaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaOP•14mo ago

Idk what to do I need to confirm that the int has 4 digits

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how do i get digits of an int?