12.12 Warm up: Online shopping cart (C not C++) (1) Create three files to submit

Question

12.12 Warm up: Online shopping cart (C not C++)

(1) Create three files to submit:

ItemToPurchase.h - Struct definition and related function declarations

ItemToPurchase.c - Related function definitions

main.c - main() function

Build the ItemToPurchase struct with the following specifications:

Data members

char itemName [ ]

int itemPrice

int itemQuantity

Related functionsMakeItemBlank()

Has a pointer to an ItemToPurchase parameter. Reference Figure 7.4.1.

Sets item's name = "none", item's description = "none", item's price = 0, item's quantity = 0

PrintItemCost()

Has an ItemToPurchase parameter.

Ex. of PrintItemCost() output:

(2) In main(), prompt the user for two items and create two objects of the ItemToPurchase struct. Before prompting for the second item, enter the following line of code to allow the user to input a new string.

Ex:

(3) Add the costs of the two items together and output the total cost.

Ex:

Output should be in 3 files and will be tested.

Instructions Below:

Explanation / Answer

Tested on Ubuntu,Linux

/************ItemToPurchase.h***************/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
static int len=2;
/*Structre declarations*/
typedef struct ItemToPurchase{
   char itemName[128];
   int itemPrice;
   int itemQuantity;  
}ItemPurchase;
/*functions declarations and object of structure*/
void MakeItemBlank(ItemPurchase*);
void PrintItemCost(ItemPurchase*);

/***************ItemToPurchase.c***************/

#include "ItemToPurchase.h"//including .h file
/*Initially initialising with default values*/
void MakeItemBlank(ItemPurchase *item) {
   int i;
   char temp[10]="none";
   for(i=0;i<len;i++) {
       strcpy(item[i].itemName,temp);
       item[i].itemPrice=0;
       item[i].itemQuantity=0;
   }      
  
}
/*PrintItemCost method will calculate cost of all item
* printing cost and name and total cost of particular item
* printing Total cost of all items */
void PrintItemCost(ItemPurchase *item) {
   /*Variable declarations*/
   int totalCost=0;
   int cost=0;
   int i=0;  
   printf("TOTAL COST ");
   /*for loop for calculating cost*/
       for(i=0;i<len;i++) {          
       cost=item[i].itemPrice*item[i].itemQuantity;
       printf("%s %d @ $%d=$%d ",item[i].itemName,item[i].itemQuantity,item[i].itemPrice,cost);
           totalCost+=cost;
           cost=0;  
          
   }
   printf("Total:$%d ",totalCost);
  
}

/**********************main.c*******************/

#include "ItemToPurchase.h"
/*Main function start*/
int main(){
int i;
char name[128];
ItemPurchase item[2];

/*prompt for user inputs*/
for(i=0;i<len;i++) {
  
   printf("Item %d ",(i+1));
   printf("Enter the item name:");
   scanf(" %[^ ]s", name);
   strcpy(item[i].itemName,name);
   printf("Enter the item price:");
   scanf("%d",&item[i].itemPrice);
   printf("Enter the item quantity:");
   scanf("%d",&item[i].itemQuantity);
}

PrintItemCost(item);

return 0;
}

/**************output*************/

raj@raj:~/Desktop/chegg$ gcc -Wall main1.c ItemToPurchase.c -o a.out -lm
raj@raj:~/Desktop/chegg$ ./a.out
Item 1
Enter the item name:Chocolate Chips
Enter the item price:3
Enter the item quantity:1
Item 2
Enter the item name:Bottled Water
Enter the item price:1
Enter the item quantity:10
TOTAL COST
Chocolate Chips 1 @ $3=$3
Bottled Water 10 @ $1=$10
Total:$13

Thanks a lot

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