How to apply check until required amount is paid for?

Question

I am trying to make a back deposit system that requires user to deposit amount of 65000, account holder should be keep deposing money until full amount of 65000 is paid. I tried to do this with do while loop but it is just working as variable and not checking how much money is paid. Here is sample of code:

int user_fee;
int deposited=65000;
do
{
    Console.WriteLine("please enter fee");
    user_fee = Convert.ToInt32(Console.ReadLine());
    obj.Fee = user_fee;
} while (user_fee<= deposited);

Possible duplicate of [do while loop in C#](https://stackoverflow.com/questions/2539009/do-while-loop-in-c-sharp) — , Nov 24 '17 at 17:24
@XavierBalloy The issue is far more trivial than the suggested duplicate. :-) — Sipty, Nov 24 '17 at 17:53

Sipty · Accepted Answer · 2017-11-24T17:48:58.940

0

Currently you're replacing user_fee with the input fee infinitely.

Change

user_fee = Convert.ToInt32(Console.ReadLine());

to

user_fee += Convert.ToInt32(Console.ReadLine());

This way, you'll keep adding the new fee into user_fee.

EDIT:

Full solution, as it seems I wasn't clear:

int user_fee;
int deposited=65000;
do
{
    Console.WriteLine("please enter fee");
    user_fee += Convert.ToInt32(Console.ReadLine());
    obj.Fee = user_fee;
} while (user_fee<= deposited);

Let me know if this works for you. Also, why's the reason for using obj.Fee = user_fee?

edited Nov 24 '17 at 17:48

answered Nov 24 '17 at 17:22

Sipty

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sorry for my idiotic question...bro i am beginner programmer and thanks for your reply. i tried to do this but it throwing error do { Console.WriteLine("please enter fee"); user_fee = Convert.ToInt32(Console.ReadLine()); obj.Fee = user_fee; user_fee +=; // error (invalid expression) } while (user_fee<= deposited); – Omar Aeo Nov 24 '17 at 17:31
@OmarAeo That's because you need to use `int user_fee = 0;` – Camilo Terevinto Nov 24 '17 at 17:33
I see where the error is Omar. `user_fee +=;` is not a valid expression. :-) Give me a minute and I'll post the entire loop for you. :-) – Sipty Nov 24 '17 at 17:47
o { Console.WriteLine("please enter fee"); user_fee = Convert.ToInt32(Console.ReadLine()); obj.Fee = user_fee; user_fee = user_fee+user_fee; } while (user_fee< deposited); – Omar Aeo Nov 24 '17 at 17:49
still not wotking – Omar Aeo Nov 24 '17 at 17:49
Please update your latest, non-working, version of the loop in the answer with formatting. Also include the error log. :-) – Sipty Nov 24 '17 at 17:51
i did please refresh this page – Omar Aeo Nov 24 '17 at 17:55
Sipty you have done some magic :) its working now.. but may i know why `user_fee = user_fee+user_fee;` is not same as `user_fee += Convert.ToInt32(Console.ReadLine());` Isnt both statment same? – Omar Aeo Nov 24 '17 at 18:05
i am using `obj.Fee` because i am using class object – Omar Aeo Nov 24 '17 at 18:06
Hello Omar, user_fee + user_fee is equivalent to user_fee*2 :-) The += adds the new value to the existing one, so in our case it's equivalent to user_fee = user_fee + Convert.ToInt32(Console.ReadLine()); Hope this helps and goodluck! – Sipty Nov 27 '17 at 15:32

score 0 · Answer 2 · answered Nov 24 '17 at 19:31

Sipty you have done some magic :) its working now.. but may i know why user_fee = user_fee+user_fee; is not same as user_fee += Convert.ToInt32(Console.ReadLine()); Isnt both statment same? – user_fee = user_fee+user_fee; is also adding user_fee into itself after each loop iteration btw thanx.. btw i am using obj.Fee because i am using class object

How to apply check until required amount is paid for?

2 Answers2