One C program for implementing structure, file manipulation, switch case and functions

Write a C program for the following:  

1. Define a structure to store the details about a book, having members like

bood_id, title of book, subject of the book, publisher, edition and price.

2. Input a number which works as the size of the array. Create a dynamic

array of the book structure.

3. Define the following functions:

1. getData(&bookVariable);

// Function which takes input of all the members of the book

structure variable passed a parameter

2. showData(&bookVariable);

// Function which show the details stored in the member variables of book structure variable passed as parameter

3. totalCost = calculateTotalCost ( booksArray, arraySize ) ;

// Function which takes array of books and the size of the book

array as parameter and returns the total of price of all books

4. storeToFile(filename, bookArray, arraySize);

// Function which stores the books from the book array to the file

specified with the file name parameter to the function

5. Write the main function to test above mentioned functions using a menu. */

#include"stdio.h"

#include"stdlib.h"

struct book

{

int book_id, edit;

int price;

char title[100], subj[100], pub[100];

};

int showData(struct book *);

int getData(struct book *);

int calculateTotalCost(struct book *, int);

int storeData(FILE *, struct book *, int);

int main()

{

int num, x, *temp, opt;

//int temp[500];

FILE *fp;

printf("\nEnter the size of array: ");

scanf("%d", &num);

struct book b[num];

//struct book b;

do

{

printf("\n\n1. Get Data\n");

printf("2. Show Data \n");

printf("3. Calculate Total Cost \n");

printf("4. Store Data \n");

printf("5. Exit");

printf("\n\n Please enter your choice:");

scanf("%d", &opt);

switch(opt)

{

case 1:

for(x=0; x<num; x++)

{

getData(&b[x]);

}

break;

case 2:

for(x=0; x<num; x++)

{

showData(&b[x]);

}

break;

case 3:

calculateTotalCost(&b, num);

break;

case 4:

storeData(&fp, &b, num);

break;

case 5:

exit(0);

break;

default:

printf("Please anter any choice: ");

}

}

while(opt != 5);

return 0;

}

int getData(struct book *p)

{

printf("Enter book_id: ");

scanf("%d", &p->book_id);

printf("Enter book edition: ");

scanf("%d", &p->edit);

printf("Enter book price: ");

scanf("%d", &p->price);

printf("Enter book title: ");

scanf("%s", p->title);

printf("Enter book subject: ");

scanf("%s", p->subj);

printf("Enter publisher name: ");

scanf("%s", p->pub);

return 0;

}

int showData(struct book *z)

{

printf("\nBook id : %d", z->book_id);

printf("\nBook Edition: %d", z->edit);

printf("\nBook Price: %d", z->price);

printf("\nBook Title: %s", z->title);

printf("\nSubject: %s", z->subj);

printf("\nPublisher name: %s", z->pub);

return 0;

}

int calculateTotalCost(struct book *c, int num)

{

int total = 0, x;

for(x=0; x<num; x++)

{

total = total + c[x].price;

}

printf("Total cost is: %d\n", total);

return 0;

}

int storeData(FILE *fp, struct book *a, int num)

{

int x;

fp = fopen("program1.txt", "a");

for(x=0; x<num; x++)

{

printf("\n");

fprintf(fp, "Book id: %d \n Book Edition: %d \n Book price: %d \n Book title: %s \n Subject: %s \n Publisher name: %s\n", a[x].book_id, a[x].edit, a[x].price, a[x].title, a[x].subj, a[x].pub);

}

fclose(fp);

printf("\nData stored successfully.\n");

return 0;

}

Output: