Link to home
Start Free TrialLog in
Avatar of Shadow-Ninja
Shadow-Ninja

asked on

Modify the calculator.

Hello all. I bet you are tired of this calculator. Anyway, to my question. This part is part 1 of three. This week I have to modify the calculator to get the user to input purchase amount, then check the validity, calculate and display the total sale amount for each location. Please do not think I am after the quick answer here. I respect everyone in here for there time and knowledge. My problems are many but any guidance to help me in the right direction would be appreciated. I have asked a few classmates and my instructor for guidance but have not recieved any word from them. I kind of feel like the class pest.

Here are my questions:
Do I need to rewrite the program in a different way to get these modifications?
Do I need to use a loop function or array's or is it just preference?

I do not want to ask anymore, I think I am asking to much already. Thank you for any possible help.

#include <stdio.h>

float calculateTax(float SalesPrice, float tax);

main()
{
      int iResponse = 0;
      
      printf("\n1\tDel Mar = .0725\n");
      printf("2\tEncinitas = .075\n");
      printf("3\tLa Jolla = .0775\n");
      printf("\nPlease select your proper tax (1-3): ");
      scanf("%d", &iResponse);
      
      switch (iResponse) {
      
          case 1:
              printf("\nYour total is %.2f\n",calculateTax(125.00,.0725)+125.00);
              break;
          case 2:
              printf("Your total is %.2f\n",calculateTax(125.00,.075)+125.00);
              break;
          case 3:
              printf("Your total is %.2f\n",calculateTax(125.00,.0775)+125.00);
              break;
              }
              
            getch();
       } // end switch    
      
       float calculateTax(float SPrice, float tax) {
       return(SPrice * tax);  
       }
SOLUTION
Avatar of ozo
ozo
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of Shadow-Ninja
Shadow-Ninja

ASKER

The loop function is what I am leaning to. It seems to give me more options to work with. The case statements I have in the original program, can I still use those, or will it over complicate the objective for me. I am a beginner, and I mean beginner. I have some knowledge from the books I have read and others just  being kind enough to answer my million questions. I comprehend better by asking questions over retaining the reading. If I accidentaly asked  for any answer other than a directional one please dis regard question. I want to learn, I do not want it handed to me. Thank you for your response ozo. I appreciate it.
The for loop function, sorry...
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
I think I have the location part taken care of. When you select your choice it outputs your slection with total. I just need to know if I am close or do I need glasses. The user input is seeming more tricky to me than I for saw. Is it possible to elaborate on this further without compromising any of your ethics in academic honesty. If you can go no further I understand. I do not want to act dishonest in turning my project in. I would rather get an incomplete than to cheat. I will check back later to see. Thank you to all who have helped. If no more answers are available due to academic honesty and rstrictions I will award them in them morning.  Again, thanks for all of the advice, You Guys "ROCK"

#include <stdio.h>
float calculateTax(float SalesPrice, float tax);
main()
{
 int iResponse = 0;
 
 printf("\nPlease Purchase Amount: 125.00\n");
 printf("\n****************************************\n");
 printf("\n1\tDel Mar = .0725\n");
 printf("2\tEncinitas = .075\n");
 printf("3\tLa Jolla = .0775\n");
 printf("\n****************************************\n");
 printf("\nPlease select your proper tax (1-3): ");
 scanf("%d", &iResponse);
 printf("\nThank You\n");
 
 if (iResponse == 1)
     printf("\nYou have chosen Del Mar tax\n");
     
 if (iResponse == 2)
     printf("\nYou have chosen Encinitas tax\n");
     
 if (iResponse == 3)
     printf("\nYou have chosen La Jolla tax\n");
       
 
 switch (iResponse) {
 
     case 1:
         printf("\nYour total is %.2f\n", calculateTax(125.00, .0725)+125.00);
         break;
     case 2:
         printf("Your total is %.2f\n", calculateTax(125.00, .075)+125.00);
         break;
     case 3:
         printf("Your total is %.2f\n", calculateTax(125.00, .0775)+125);
         break;
         }
         
       getch();
  } // end switch        

float calculateTax(float SPrice, float tax) {
 return(SPrice * tax);  
}
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
This is what I have now. It compiles but I still think there is one thingmissing and I also think I wrote more code than neccessary to achieve this goal, which I do not mind. I learned and that is the most important thing.

#include <stdio.h>  
float calculateTax(float SalesPrice, float tax);
main()
{
 int iResponse = 0; //Gives value to my integer
 float fPurchase = 125.00;//The amount of the purchase being made
 float fDelMar = .0725;//This locations tax
 float fEncinitas = .075;//This locations tax
 float fLaJolla = .0775;//This locations tax
 
 printf("\nWelcome to Kudler Fine Foods\n"); //Greeting
 printf("\nPlease select your Local Tax\n"); //Prompts for user input
 printf("\n****************************************\n"); //Outlines my menu
 printf("\n1\tDel Mar = .0725\n");/////
 printf("2\tEncinitas = .075\n");//////////// These are tax percentages for each location
 printf("3\tLa Jolla = .0775\n");////
 printf("\n****************************************\n");
 printf("\nPlease select your proper tax (1-3): "); //Ask for input
 scanf("%d", &iResponse);
 printf("\nThank You\n"); //Manners,LOL
 
 if (iResponse == 1) {      
      printf("\nEnter Amount Purchased: ");
      scanf("%f", &fPurchase);                   //Gives tax,purchase amount,and totalfor the this Response
      printf("\nYour Total: $%.2f\n" fDelMar, fPurchase);//Multiplies my purchase with the correct tax for this location
}//end if
 if (iResponse == 2) {            
      printf("\nEnter Amount Purchased: ");
      scanf("%f", &fPurchase);                   //Gives tax,purchase amount, and total for this response
      printf("\nYour Total: $%.2f\n", fEncinitas, fPurchase); //Multiplies my purchase with the correct tax for this location
}//end if

 if (iResponse == 3) {      
      printf("\nEnter Amount Purchased: ");
      scanf("%f", &fPurchase);                    //Gives tax, purchase amount, and total for this response
      printf("\nYour Total: $%.2f\n", fLaJolla, fPurchase); //multiplies my purchase with the correct tax for this location
      
}//end if   //ends the if structures
 
 
 switch (iResponse){ // Begins my switch
 
     case 1:
         printf("\nYour total is %.2f\n", calculateTax(125.00, .0725)+125.00);
         break;
     case 2:
         printf("Your total is %.2f\n", calculateTax(125.00, .075)+125.00);
         break;
     case 3:
         printf("Your total is %.2f\n", calculateTax(125.00, .0775)+125);
         break;
         }
         
       getch();
  } // end switch        

float calculateTax(float SPrice, float tax) {
 return(SPrice * tax);  
}
ASKER CERTIFIED SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Thanks, I appreciate everyone who helped me and also by helping it be honest. I liked that you helped me but kept it to where I was able to learn it mostly by my deducing the problem. I was going to terminate my membership but since I was treated with respect and was not given the answer I am going to stay. Thank you, and have a great day. I have spread the points out appropiatly....