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Posted on 2006-06-17
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i work for the hole tax consulting corp i had created this program below changed variables to not show the company materials.   i have to modify the C program so that the user inputs the purchase amount. Check the userâ€™s input for validity. Have the user select from a menu which store to use for the tax calculation. Calculate and display the tax amount for the store selected and the total sale amount for that store.  can you please help me.

# include <stdio.h>
void main(void)
{
//entering the variables in float
float cost = 0.0;
float delmar = .0725;
float encinitas = .075;
float lajolla = .0775;
//entering
scanf ("%f",& cost);
printf ("the delmar sales tax is %.2f\n", delmar * cost);
printf ("the encinitas sales tax is %.2f\n", encinitas * cost);
printf ("the lajolla sales tax is %.2f\n", lajolla * cost);
printf ("\n");
printf ("the total for delmar is %.2f\n", delmar * cost + cost);
printf ("the total for encinitas is %.2f\n", encinitas * cost +
cost);
printf ("the total for lajolla is %.2f\n", lajolla * cost + cost);
getchar();
}

0
Question by:mannyfresco
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LVL 16

Accepted Solution

PaulCaswell earned 125 total points
ID: 16927374
Hi mannyfresco,

There's a special page for 'C' questions. Would you like me to move this question there?

Paul <C Page Editor>
0

LVL 20

Expert Comment

ID: 16927737
If by create a menu you mean have some sort of graphical user interface for entering prices and purchases, you are way on the wrong track using C99
0

LVL 4

Expert Comment

ID: 16928036
#include <iostream>
using namespace std;
//Code written by Programmer1024, (c) 2006 Programmer1024

void main() {

float cost = 0.0;
float delmar = 0.0725;
float encinitas = 0.075;
float lajolla = 0.0775;
int choice;

cout << "Enter the sales price: \n";
cin >> cost;

switch(choice){

case 1:
cout << "\nThe total for delmar is \$" << delmar * cost + cost << "\n";
break;

case 2:
cout << "\nThe total for encinitas is \$" << encinitas * cost + cost << "\n";
break;

case 3:
cout << "\nThe total for lajolla is \$" << lajolla * cost + cost << "\n";
break;

}
}

int ch;

cout << "------------------------------\n";

cout << "1. Delmar sales tax rate.\n";
cout << "2. Encinitas sales tax rate.\n";
cout << "3. Lajolla sales tax rate.\n";

cin >> ch;

return ch;

}
0

LVL 20

Expert Comment

ID: 16928044
He is using C99, not C++, your code does not apply programmer1024
0

LVL 4

Expert Comment

ID: 16928100
Sorry Paul. If you want to remove my post until you can confirm the question's authenticity, please feel free.
0

LVL 4

Expert Comment

ID: 16928102
Oops, you're right 'bryden.
0

LVL 16

Expert Comment

ID: 16929085
No probs programmer1024. I think asker wants C and your C++ demonstrates how to do it but not what to do, which is ideal I think.

Paul
0

Author Comment

ID: 16934993
this is not homework
0

Author Comment

ID: 16939450
i dont want an answer i just want to know how to create a menu what is the command that is all.  i know how to printf and loop
0

Author Comment

ID: 16941734
# include <stdio.h>
void main(void)
{

int iResponse = 0;
//entering the variables in float
float cost = 0.0;
float delmar = .0725;
float encinitas = .075;
float lajolla = .0775;
//entering
printf("\n1\tlajolla\n");
printf("2\tdelmar\n");
printf("3\tencinitas\n");
printf("\nPlease select a category (1â€”3): ");
scanf("%d", &iResponse);
switch (iResponse) {
case 1:
printf("\nYou selected la jolla\n");
case 2:
printf("You selected delmar\n");
case 3:
printf("You selected encinitas\n");
scanf ("%f",& cost);
printf ("the delmar sales tax is %.2f\n", delmar * cost);
printf ("the encinitas sales tax is %.2f\n", encinitas * cost);
printf ("the lajolla sales tax is %.2f\n", lajolla * cost);
printf ("\n");
printf ("the total for delmar is %.2f\n", delmar * cost + cost);
printf ("the total for encinitas is %.2f\n", encinitas * cost +
cost);
printf ("the total for lajolla is %.2f\n", lajolla * cost + cost);
getchar();
}

got it a little better still doesnt compile help thanks.
0

LVL 16

Expert Comment

ID: 16946070
This should get you going:

Change:

printf("You selected encinitas\n");

to

printf("You selected encinitas\n");
}

Track each error from its line number. You WILL get them all in the end. This self-discipline is one of the most difficult to learn in programming. There is no point trying to avoid it. Your program wont run until it compiles.

Paul
0

Author Comment

ID: 16948107
thanks for your advice all that happened was that i used microsoft word to create the program then i copied and pasted into the c compiler.  i got the answer done.
0

LVL 4

Expert Comment

ID: 16948286
Soo...points???
0

LVL 20

Expert Comment

ID: 16951674
I think he's handing out about as many points as he's getting for doing this assignment :P
0

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