Question

Class as a ChapteredVideo. The constructor should take the following parameters:

ID, length, num_chapters, chap_lengths, location, [extension]

The new parameter should be stored as their own instance variables. The ChapteredVideo object should behave as the Video. However, the method get_ID should now return a list which contains whatever the Video previously would return as its ID as the first element, followed by a list of chapter names. Each chapter name will be formed by the ID of the main video followed by ‘#’ and then the chapter number (starting at 1). For instance, a valid list could be ["123", "123#1", "123#2", "123#3"]. The ChapteredVideo class should also have a new accessor method, get_num_chapters.

Implement ChapteredVideo class as specified above.

Answer 1

#include<bits/stdc++.h>
using namespace std;

class ChapteredVideo
{
    int ID, length, num_chapters, chap_lengths;
    string location;
    string extension;
    vector <string> chapName;

public:
    ChapteredVideo(int ID, int length, int num_chapters, int chap_lengths, string location, string extension)
    {
        this->ID = ID;
        this->length = length;
        this->num_chapters = num_chapters;
        this->chap_lengths = chap_lengths;
        this->location = location;
        this->extension = extension;
    }

    vector<string> get_ID()
    {
        vector<string> R;
        R.push_back(to_string(this->ID));
    for (int i = 0; i < this->chapName.size();i++)
    {
            R.push_back(this->chapName[i]);
    }
            return R;
    }

    int get_num_chapters(){
        return this->num_chapters;
    }
    void addChapName(int i){
        string c = to_string(this->ID) + "#" + to_string(i);
       
        this->chapName.push_back(c);
    }
};

int main()
{
    ChapteredVideo c1(123, 23, 12, 40, "C", "mp4");

    for (int i = 1; i < 10;i++)
        c1.addChapName(i);
    vector<string> I = c1.get_ID();
    for (auto itr : I)
    {
        cout << itr <<" ";
    }
    return 0;
}