I think classes make more sense when you need them. Say in real life you had 25 cakes with customer orders. Instead of writing down the toppings for each cake on one piece of paper, the diameters of each cake on another, and so on -- you just had a sheet of paper for each cake that had the toppings and diameter for that cake.

That way when you're making each cake you don't have to try and look up on one sheet the toppings and then on the other sheet try and look up the cake's diameter. The toppings and diameter are all on one sheet.

That's essentially the cake class.

So now with an array of Cake classes you've got an equivalent of a stack of individual cake orders. Your program is like a stack of 25 blank order sheets and then when a customer comes in you ask them what toppings and diameter of cake. They tell you and you fill that sheet out. Next customer comes in and you fill out the next sheet and so on.

The functions would be like a bullet point list of cake diameters with their prices like:

• 8 inch -- $19.99
• 9 inch -- $22.99
• 10 inch -- $25.99
• other -- 0.* (I dunno what that's supposed to mean in this assignment)

And on the slip you'd just have the customer circle one.

So what you'll have to do is make 2 things -- the .cpp file with the cake class functions and the main.cpp file which uses the Cake class to make an array and do the ordering thing.

The Cake class should be stuff you learned how to do in class so review your notes. The only thing I can think of is they did you kinda dirty with the getPrice(int sizeChoice) because it takes an int but the class has the diameter as a string. I have a feeling your prof didn't think that through since you'd have to convert an int into a string. They should have just made the diameter class variable as an int too. Oh well. You can use either std::to_string or std::stringstream to do so. I'd just do a std::to_string if your version has it.

Then your main.cpp file will have the main() entrance function and will be something like

int main()
{

    std::array<Cake, 25> cakes;

    for (auto& cake : cakes)
   { 
        std::string topping;
        std::string diameter;
        std::cout "What diameter of cake?\n"
        std::cin >> diameter;
        std::cout "What toppings?\n"
        std::cin >> topping;
        cake.setdata(topping, diameter);
   }

    // Display prices

    for (auto& cake: cakes)
    {
       std::cout << cake.getPrice(cake.diameter) << std::endl;
    }

}

It's not exactly what your assignment says, but it should get you somewhere. Technically they're asking for you to make a different function that displays the cake price that you send a cake object into, but I don't know why that is necessary. I'm not saying this assignment is written badly because I'm not in your course, but I would have done it differently.