URGENT

[Umesh]

CoffeeVendor is a program, which simulate a coffee machine. The coffee
machine serves coffee with sugar and creamer for Rs.10/- and Rs.6/-
without sugar and creamer (black coffee). The coffee machine accepts
cash in value of Rs.1/-, Rs.2/- and Rs.5/- coins, as well as credit
cards and debit cards. Detailed specification is as follows:
(i) Functional Requirements:
a) Accept cash input in value of 1, 2 or 5 rupee coins.
b) Accept credit card (with credit limit).
c) Accept debit card (with PIN number and balance).
d) Serve coffee with sugar and creamer for Rs.10/-.
e) Serve black coffee without sugar and cream for Rs.6/-.
f) Put correct amount of money on credit card and debit card.
(ii) Output Requirements:

a) Display the total amount of money after inputting the cash.
b) Display error message when there is no enough money, over credit
limit, balance
below zero, insert invalid cash, or input invalid
command.
c) Display receipt after each transaction.

(iii) Constraints:
a) One cup of white coffee contains one unit of coffee powder, sugar
and creamer, while one cup of black coffee only contains one unit of
coffee powder and water. For the coffee machine, there is a limit
capacity of the coffee powder, sugar and creamer. If there isn't
enough coffee powder available, the coffee machine cannot serve the
black coffee. And if there is not enough coffee powder, sugar and
creamer, the coffee machine cannot serve the white coffee. When the
coffee machine cannot fulfill the user request, the money should be
refunded to users.
b) After each transaction, user should re-enter the credit card or
debit card to perform another transaction.
c) The limit capacity, the credit card and the debit card information
will be stored in three different files, and will be read in when the
program is launched. If the initial capacity cannot serve for at least
one cup of coffee, print out an error message, if the format of credit
card and debit card files is not correct, print out error messages.
Related files are:
· ingredient.dat - Coffee, Sugar and creamer limits
· debitCard.dat - Debit card number, PIN and Balance
· creditCard.dat - Credit card number, credit limit
(iv) Environment:
a) Character mode interface.
b) Develop using C programming language.

[Eric Sosman]

Umesh wrote On 05/11/07 11:56,:

CoffeeVendor is a program, which simulate a coffee machine.
[...]

That's nice. Can I get a simulated buzz from it?

--
Er*********@acm-dot-org.invalid

[Charlton Wilbur]

>>>>"U" == Umesh <fr************ ****@gmail.comw rites:

UCoffeeVendor is a program, which simulate a coffee machine.

You neglected to indicate how much you were paying and your
instructor's email address.

Charlton

--
Charlton Wilbur
cw*****@chromat ico.net

[Carramba]

Charlton Wilbur skrev:

>>>>>"U" == Umesh <fr************ ****@gmail.comw rites:

UCoffeeVendor is a program, which simulate a coffee machine.

You neglected to indicate how much you were paying

Just by careful or you may get paid in simulation

and your

instructor's email address.

Charlton

[Walter Roberson]

In article <11************ **********@y5g2 000hsa.googlegr oups.com>,
Umesh <fr************ ****@gmail.comw rote:

>CoffeeVendor is a program, which simulate a coffee machine.

You did not ask a question. If the question is "Can this be
written in standard C", the answer is "Yes on hosted systems
that permit files with the given names, provided that the
'character mode interface' required is just plain-text output
without (for example) absolute location positioning to simulate
the machine operation."

>The coffee
machine serves coffee with sugar and creamer for Rs.10/- and Rs.6/-
without sugar and creamer (black coffee). The coffee machine accepts
cash in value of Rs.1/-, Rs.2/- and Rs.5/- coins, as well as credit
cards and debit cards. Detailed specification is as follows:
(i) Functional Requirements:
a) Accept cash input in value of 1, 2 or 5 rupee coins.

>b) Display error message when there is no enough money, over credit
limit, balance below zero, insert invalid cash, or input invalid
command.

Your requirements do not specify what is to happen if the user
puts in more money than the value of their transaction. There
was no requirement specified for making change, no discussion
of what should happen if the correct change could not be made,
and no file specifying the initial distribution of coins in
the machine available for making change. At the same time, the
specifications do not permit an error message for the case
of too *much* money. ("insert invalid cash" is not the same
as "exact change required".)
--
Okay, buzzwords only. Two syllables, tops. -- Laurie Anderson

[Paul Uiterlinden]

Umesh wrote:

CoffeeVendor is a program, which simulate a coffee machine. The coffee
machine serves coffee with sugar and creamer for Rs.10/- and Rs.6/-
without sugar and creamer (black coffee). The coffee machine accepts
cash in value of Rs.1/-, Rs.2/- and Rs.5/- coins, as well as credit
cards and debit cards. Detailed specification is as follows:

You're already too late!

Course Code : MCSL-017
Course Title : C and Assembly Language Programming
Assignment Number : MCA(1)/017/Assign/07
Maximum Marks : 100
Weightage : 25%
Last date of Submission : 30th April, 2007

Or did your instructor borrow the assignment from the internet?

[Keith Thompson]

Umesh <fr************ ****@gmail.comw rites:

CoffeeVendor is a program, which simulate a coffee machine.

[...]

b) Develop using C programming language.

Observation: You need a C program that satisfies the stated
requirements.

Observation: The rest of us do not need such a program.

Question: Logically, then, who should do the work of implementing it?

Hint: The correct answer begins with "U" and ends with "mesh".

Summary: Do your own damned homework. Or fail. It's up to you.

--
Keith Thompson (The_Other_Keit h) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <* <http://users.sdsc.edu/~kst>
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"

[osmium]

"Umesh" writes:

CoffeeVendor is a program, which simulate a coffee machine. The coffee
machine serves coffee with sugar and creamer for Rs.10/- and Rs.6/-
without sugar and creamer (black coffee). The coffee machine accepts
cash in value of Rs.1/-, Rs.2/- and Rs.5/- coins, as well as credit
cards and debit cards. Detailed specification is as follows:
(i) Functional Requirements:
a) Accept cash input in value of 1, 2 or 5 rupee coins.
b) Accept credit card (with credit limit).
c) Accept debit card (with PIN number and balance).
d) Serve coffee with sugar and creamer for Rs.10/-.
e) Serve black coffee without sugar and cream for Rs.6/-.
f) Put correct amount of money on credit card and debit card.
(ii) Output Requirements:

a) Display the total amount of money after inputting the cash.
b) Display error message when there is no enough money, over credit
limit, balance
below zero, insert invalid cash, or input invalid
command.
c) Display receipt after each transaction.

(iii) Constraints:
a) One cup of white coffee contains one unit of coffee powder, sugar
and creamer, while one cup of black coffee only contains one unit of
coffee powder and water. For the coffee machine, there is a limit
capacity of the coffee powder, sugar and creamer. If there isn't
enough coffee powder available, the coffee machine cannot serve the
black coffee. And if there is not enough coffee powder, sugar and
creamer, the coffee machine cannot serve the white coffee. When the
coffee machine cannot fulfill the user request, the money should be
refunded to users.
b) After each transaction, user should re-enter the credit card or
debit card to perform another transaction.
c) The limit capacity, the credit card and the debit card information
will be stored in three different files, and will be read in when the
program is launched. If the initial capacity cannot serve for at least
one cup of coffee, print out an error message, if the format of credit
card and debit card files is not correct, print out error messages.
Related files are:
· ingredient.dat - Coffee, Sugar and creamer limits
· debitCard.dat - Debit card number, PIN and Balance
· creditCard.dat - Credit card number, credit limit
(iv) Environment:
a) Character mode interface.
b) Develop using C programming language.

I can believe that the spec is not complete as someone has pointed out, but
the general outline seems reasonable to me. I would guess that your main
problem is fear. You are going to get off to a bad start or something.
Welcome to the club! That's what it's all about, making mistakes. As time
goes by you will be making new mistakes, which may be some small comfort.
Coffee machines are very rigid devices, there are two parts of the
transaction "give me the money" and "what do you want?" in that order.
Perhaps two menus might make sense, because, properly, "do you want cream"
should be grayed out until the money part of the deal is finished. And
graying out is not a readily available feature of a character mode C
interface. (To be strict, C doesn't *have* a character mode interface, it
is a *line* mode, you have to push Enter before anything happens.) Keep
that in mind, as you write your menu. C does not natively produce programs
that are end-user friendly.

Try to find the easiest (least scary) path through the problem. How about
giving a cup of black coffee to a customer with a credit card with enough
money in the account? And grow from there. I would expect your confidence
to grow as you work your way through this exercise. The problems are not,
in my experience in the nitty-gritty of the pieces. It is to get the pieces
to all fit together in a working whole. Plan on compiling at least 50 times.
Don't write a big piece of code and then start compiling, this is not a
course in learning how to type..

Maybe your first step is a menu that produces this display.and waits for a
line to be entered.
---------------
How do you want to pay?

a) Coins
b) Credit card
c) Debit card.

If the user presses anything other than 'b' followed by Enter, you simply
print a message "Function ____ is not implemented yet". Such a thing is
called a "stub".

[osmium]

"osmium" wrote:

"Umesh" writes:

CoffeeVendor is a program, which simulate a coffee machine. The coffee
machine serves coffee with sugar and creamer for Rs.10/- and Rs.6/-
without sugar and creamer (black coffee). The coffee machine accepts
cash in value of Rs.1/-, Rs.2/- and Rs.5/- coins, as well as credit

<snipI see that OE is having one of its periodic fits where it doesn't add
corner brackets. This happens to others as well as me. Give the guys at us
a break, it's only major release 6

[Default User]

osmium wrote:

"osmium" wrote:

"Umesh" writes:

CoffeeVendor is a program, which simulate a coffee machine. The
coffee machine serves coffee with sugar and creamer for Rs.10/- and
Rs.6/- without sugar and creamer (black coffee). The coffee machine
accepts cash in value of Rs.1/-, Rs.2/- and Rs.5/- coins, as well
as credit

<snipI see that OE is having one of its periodic fits where it
doesn't add corner brackets. This happens to others as well as me.
Give the guys at us a break, it's only major release 6

Unless you're constrained for some reason to use OE, I would recommend
switching on one of the many fine newsreaders out there that don't have
the bugs and odd design decisions.


Brian