Question

In: Computer Science

This is a beginner C++ class Your program will be creating 10 library books. Each library...

This is a beginner C++ class

Your program will be creating 10 library books. Each library book will have a title, author and publishing year. Each library book will be stored as a structure and your program will have an array of library books (an array of structures).

After creating the struct, the next task is to create a new separate array for book genres.

You will create this corresponding array of book genres: Mystery, Romance, Fantasy, Technology, Children, etc. If the first element of the structure is storing information about a book titled : "More about Paddington", then the corresponding first element of array book genre would indicate 'Children'.

You should only use structure and array. You are not allowed to use vectors.

The user of your program should be able to select what they want to do from a menu of the following things and your program needs to do what the menu selection indicates:

* Print the entire list of library books (including the title, author, publishing year and book genre)

* Display a count of how many books exist per genre

* Find and display all books where the publishing year is greater than the year user put in

* Print the titles of the books where the Genre may be indicated by a 'C' for Children, & 'M' for Mystery

Expert Solution

Screenshot

Program

#include <iostream>
#include<string>
#include<iomanip>
using namespace std;
//Book struct
struct Book {
   string title;
   string author;
   int year;
};
//Function prototypes
int loadData(Book*, string*);
int menu();
void printLibrary(const Book[], const string[], int sz);
void existPerGenre(string[], int sz);
void printGreater(const Book[], const string[], int sz,int yr);
void searchForGenre(const Book[], const string[],int sz, char ch);
int main()
{
   //Array for library
   Book library[10];
   //Array for corresponding genres
   string genres[10];
   int yr;
   char gen;
   //Function call to load library with books
   int cnt = loadData(library, genres);
   int opt = menu();
   //Loop unti exit
   while (opt != 5) {
       if (opt == 1) {
           printLibrary(library, genres, cnt);
       }
       else if (opt == 2) {
           existPerGenre(genres, cnt);
       }
       else if (opt == 3) {
           cout << "\nEnter year: ";
           cin >> yr;
           printGreater(library, genres, cnt, yr);
       }
       else if (opt == 4) {
           cout << "\nEnter genre(c/m): ";
           cin >> gen;
           while (toupper(gen) != 'C' && toupper(gen) != 'M')
           {
               cout << "Error!!!Should be C or M" << endl;
               cout << "\nEnter genre(c/m): ";
               cin >> gen;
           }
           searchForGenre(library, genres, cnt, gen);
       }
       cout << endl;
       opt = menu();
   }
   //End
   cout << "GOOD BYE!!!" << endl;
   return 0;
}
//Function to load data into arrays
int loadData(Book* library, string* genres) {
   int cnt = 0;
   library[cnt].title = "C++ Programming for beginners";
   library[cnt].author = "Benjamin Stroup";
   library[cnt].year = 1989;
   genres[cnt] = "Technology";
   cnt++;
   library[cnt].title = "Java Programming for beginners";
   library[cnt].author = "Micheal Mintos";
   library[cnt].year = 1991;
   genres[cnt] = "Technology";
   cnt++;
   library[cnt].title = "More about Paddington";
   library[cnt].author = "Catherine Rose";
   library[cnt].year = 2000;
   genres[cnt] = "Children";
   cnt++;
   return cnt;
}
//Function to display menu
//and return user selection
int menu(){
   int ch;
   cout << "OPTIONS:-" << endl;
   cout << "1. Print the entire list of library books\n2. Display a count of how many books exist per genre"
       << "\n3 Find and display all books where the publishing year is greater than the year user put in"
       << "\n4. Print the titles of the books where the Genre may be indicated by a 'C' for Children, &'M' for Mystery"
       << "\n5. Exit" << endl;
   cout << "Enter your choice: ";
   cin >> ch;
   while (ch < 1 || ch>5) {
       cout << "Error!! Choice should be 1-5" << endl;
       cout << "Enter your choice: ";
       cin >> ch;
   }
   return ch;
}
//Function to print all the books in library
void printLibrary(const Book lib[], const string genre[], int sz) {
   cout << "\n Title                                    Author          PublishedYear          Genre" << endl;
   cout << "------------------------------------------------------------------------------------------" << endl;
   for (int i = 0; i < sz; i++) {
       cout << setw(25) << lib[i].title << setw(25) << lib[i].author << setw(15)
           << lib[i].year << setw(22) << genre[i] << endl;
   }
}
//Function to display Genre count
void existPerGenre(string gen[], int sz) {
   string *genre;
   genre = new string[sz];
   int k = 0;
   for (int i = 0; i < sz; i++) {
       bool check = false;
           for (int l = 0; l < k; l++) {
               if (genre[l] == gen[i]) {
                   check = true;
                   break;
               }
           }
           if (check == false) {
               genre[k] = gen[i];
               k++;
           }
   }
   cout << "\n Genre          count\n";
   for (int i = 0; i < k; i++) {
       int cnt = 0;
       for (int j = 0; j < sz; j++) {
           if (gen[j] == genre[i]) {
               cnt++;
           }
       }
       cout << setw(10) << genre[i] <<setw(10)<< cnt << endl;
   }
}
//Function to display details of books greater than given year
void printGreater(const Book lib[], const string gen[], int sz, int yr) {
   bool check=false;
   for (int i = 0; i < sz; i++) {
       if (lib[i].year > yr) {
           cout << setw(25) << lib[i].title << setw(25) << lib[i].author << setw(15)
               << lib[i].year << setw(22) << gen[i] << endl;
           check = true;
       }
   }
   if (!check) {
       cout << "No books present after the year " << yr << endl;
   }
}
//Function based on genre
void searchForGenre(const Book lib[], const string gen[],int sz, char ch) {
   bool check;
   if (toupper(ch) == 'M') {
       for (int i = 0; i < sz; i++) {
           if (gen[i]=="Misery") {
               cout << lib[i].title << endl;
               check = true;
           }
       }
   }
   else{
       for (int i = 0; i < sz; i++) {
           if (gen[i] == "Children") {
               cout << lib[i].title<< endl;
               check = true;
           }
       }
   }
   if (!check) {
       cout << "No book found in libraray" << endl;
   }
}

------------------------------------------------------------------------------------------

Output

OPTIONS:-
1. Print the entire list of library books
2. Display a count of how many books exist per genre
3 Find and display all books where the publishing year is greater than the year user put in
4. Print the titles of the books where the Genre may be indicated by a 'C' for Children, &'M' for Mystery
5. Exit
Enter your choice: 1

Title                                    Author          PublishedYear          Genre
------------------------------------------------------------------------------------------
C++ Programming for beginners          Benjamin Stroup           1989            Technology
Java Programming for beginners           Micheal Mintos           1991            Technology
    More about Paddington           Catherine Rose           2000              Children

OPTIONS:-
1. Print the entire list of library books
2. Display a count of how many books exist per genre
3 Find and display all books where the publishing year is greater than the year user put in
4. Print the titles of the books where the Genre may be indicated by a 'C' for Children, &'M' for Mystery
5. Exit
Enter your choice: 2

Genre          count
Technology         2
Children         1

OPTIONS:-
1. Print the entire list of library books
2. Display a count of how many books exist per genre
3 Find and display all books where the publishing year is greater than the year user put in
4. Print the titles of the books where the Genre may be indicated by a 'C' for Children, &'M' for Mystery
5. Exit
Enter your choice: 3

Enter year: 1990
Java Programming for beginners Micheal Mintos 1991 Technology
More about Paddington Catherine Rose 2000 Children

OPTIONS:-
1. Print the entire list of library books
2. Display a count of how many books exist per genre
3 Find and display all books where the publishing year is greater than the year user put in
4. Print the titles of the books where the Genre may be indicated by a 'C' for Children, &'M' for Mystery
5. Exit
Enter your choice: 4

Enter genre(c/m): c
More about Paddington

OPTIONS:-
1. Print the entire list of library books
2. Display a count of how many books exist per genre
3 Find and display all books where the publishing year is greater than the year user put in
4. Print the titles of the books where the Genre may be indicated by a 'C' for Children, &'M' for Mystery
5. Exit
Enter your choice: 5
GOOD BYE!!!

-----------------------------------------------------------------------------------------------

Note:-

I assume you are expecting your program this way

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