Write a program which will use a class named Product. The Product class will hav

Question

Write a program which will use a class named Product. The Product class will have data values for name (string) and price (double). It will have functions to do the following:

·         Construct a new instance of the Product class

·         Assign a value to the name

·         Assign a value to the price

·         Return the value of the name

·         Return the value of the price

You will have to write the interface and the functions listed in the interface.

The main program will do the following:

·         It will declare first_product and second_product as pointers to instances of Product.

·         It will use the constructor to create new instances of Product and set first_product and second_product to each point to an instance of Product.

·         Get values of name and price and assign them to the data values of first_product.

·         Get values of name and price and assign them to the data values of second_product.

·         Dereference first_product and print the values of its name and price.

·         Dereference second_product and print the values of its name and price.

·         Delete first_product.

·         Delete second_product.

Explanation / Answer

Assuming that the required programming language is C++

#include <iostream>
using namespace std;

class Product{
   string name;
   double price;
public:
   Product( string nm="", double prc=0 ){
       name = nm;
       price = prc; }
   void setName( string nm ){
       name = nm; }
   void setPrice( double prc ){
       price = prc;
   }
   string getName(){
       return name;
   }
   double getPrice(){
       return price;
   }
};

int main(){
   Product* first_product, *second_product;

   first_product = new Product();
   second_product = new Product();

   string name;
   double price;

   cout << "Enter name of first product: ";
   cin >> name;
   cout << "Enter price of first product: ";
   cin >> price;
   first_product->setName( name );
   first_product->setPrice( price );

   cout << "Enter name of second product: ";
   cin >> name;
   cout << "Enter price of second product: ";
   cin >> price;
   second_product->setName( name );
   second_product->setPrice( price );
  

   cout << endl << endl;

   cout << "First Product: " << endl;
   cout << "Name: " << (*first_product).getName() << endl;
   cout << "Price: " << (*first_product).getPrice() << endl;
   cout << endl;
   cout << "Second Product: " << endl;
   cout << "Name: " << (*second_product).getName() << endl;
   cout << "Price: " << (*second_product).getPrice() << endl;
   cout << endl;

   delete first_product;
   delete second_product;

   return 0;
}

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