Question

C++ program

Suppose we have the following book base class: class book { public: book(char *, char *, int); void show_book(); private: char title[64]; char author[64]; int pages; }; Suppose that we need to derive a new class, called libraryCard class, which adds the following members to the book class: char catalog[64]; int checked out; // 1 if checked out, otherwise 0 if available libraryCard(char *, char *, int, char *, int); void show_card(); 1. Derive the new class from the base class 2. Implement all the functions 3. Populate the driver program with the sample output and data provided Note: The instantiated object must be of derive class type. SAMPLE OUTPUT ************************* Title: C++ How to Program Author: Deitel & Deitel Pages: 1400 Catalog: 300CPP Status: Checked out *************************

Answer 1

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Solution:

//header file
#include <bits/stdc++.h>
using namespace std;
//class book
class book
{
    //private variables
    private:
    char title[64];
    char author[64];
    int pages;
    
    public:
    //constructor
    book(char* Title,char* Author,int Pages)
    {
        //assigning values to corresponding variables
        strcpy(title,Title);
        strcpy(author,Author);
        pages=Pages;
    }
    //show_book() function to print the data
    void show_book()
    {
        cout<<"*********************************************\n";
        cout<<"Title: "<<title<<"\n";
        cout<<"Author: "<<author<<"\n";
        cout<<"Pages: "<<pages<<"\n";
    }
};
//class libraryCard inherits book
class libraryCard:public book
{
    //private variables
    private:
    char catalog[64];
    int checked_out;
    
    public:
    //constructor, which also call constructor of parent class(book class)
    libraryCard(char* Title,char* Author,int Pages,char* Catalog,
               int Checked_out):book(Title,Author,Pages)
    {
        //assigning values to variables
        strcpy(catalog,Catalog);
        checked_out=Checked_out;
    }
    //show_card() function to print data
    void show_card()
    {
        //call show_book() function to print values of parent class
        show_book();
        cout<<"Catalog: "<<catalog<<"\n";
        //condition for checked_out
        if(checked_out==1)
        cout<<"Status: Checked out\n";
        else
        cout<<"Status: Available\n";
        cout<<"*********************************************\n";
    }
};
int main()
{
    //local variables
    char title[64];
    char author[64];
    int pages;
    char catalog[64];
    int checked_out;
    //enter data from user
    cout<<"Enter Title: ";
    cin.getline(title,64);
    cout<<"Enter Author: ";
    cin.getline(author,64);
    cout<<"Enter Pages: ";
    cin>>pages;
    /*this statement is to ignore new line after an integer input, if we didn't
    write this then catalog will store newline*/
    cin.ignore();
    cout<<"Enter Catalog: ";
    cin.getline(catalog,64);
    cout<<"Enter Checked_out: ";
    cin>>checked_out;
    
    //create object of libraryCard class
    libraryCard lc(title,author,pages,catalog,checked_out);
    cout<<"\n\n";
    //call function show_card()
    lc.show_card();
    
    

    return 0;
}

Output:

input Enter Title: C++ How to Program Enter Author: Deitel & Deitel Enter Pages: 1400 Enter Catalog: 300CPP Enter Checked_out: 1 Title: C++ How to Program Author: Deitel & Deitel Pages: 1400 Catalog: 300CPP Status: Checked out ...Program finished with exit code 0 Press ENTER to exit console. I

Thank You!