string line;
    ifstream input("books.txt");

    vector<Books>id;
    vector<Books>title;
    vector<Books>author;
    vector<Books>category;
    vector<Books>copies;

    while(getline(input, line))
    {
        stringstream strStream(line);
        string id, title, author, category, copies;

        // Read tokens in this line one by one
        getline(strStream, id, '|');
        getline(strStream, title, '|');
        getline(strStream, author, '|');
        getline(strStream, category, '|');
        getline(strStream, copies, '|');


        // We need to convert the number of copies, and may be ID, to integers
        int idNum, copiesNum;
        stringstream idConverter(id);
        idConverter >> idNum;

        stringstream copiesConverter(copies);
        copiesConverter >> copiesNum;

        Books book1(idNum, title, author, category, copiesNum);

        id.push_back(idNum);
        title.push_back(title);
        author.push_back(author);
        category.push_back(category);
        copies.push_back(copiesNum);



        //books userBooks(id, title, author, category, copies);

        cout << idNum << ", " << title << ", " << author << ", " << category << ", " << copiesNum << endl;
    }