Question

What is wrong with this header file? The program wont compile but if i transfer the body of the header file into the main file it will compile just fine.

This is the error message that pops up: [Error] 'cout' was not declared in this scope

// Specification file for the Account class.
#ifndef ITEM_H
#define ITEM_H
#include <string>
using std::string;

class Can
{
   private:
       double price = 0.0;
       string company;
       string content;
       double size = 0.0;
  
   public:
       Can()
       {
           price = 0.99;
           company = "Goyo";
           content = "Black Beans";
           size = 13.0;
       }
       Can(double p, double s, string com, string cont)
       {
           price = p;
           size = s;
           company = com;
           content = cont;
       }
       Can(string com, string cont)
       {
           company = com;
           content = cont;
       }
       double getPrice()
       {
           return price;
       }
       string getCompany()
       {
           return company;
       }
       string getContent()
       {
           return content;
       }
       double getSize()
       {
           return size;
       }
       void setPrice(double p)
       {
           price = p;
       }
       void setCompany(string com)
       {
           company = com;
       }
       void setContent(string cont)
       {
           content = cont;
       }
       void setSize(double s)
       {
           size = s;
       }
       void displayArray()
       {
           cout << "[Company = " << company << ", Content = " << content << ", Size = " << size << ", Price = " << price << "]";
       }
};
#endif

This is the main file that goes with it

#include <iostream>
#include <string>
#include "item.h"
using namespace std;

int main()
{
   Can can1;
   Can can2(2.39, 12.0, "S&W", "Peaches"), can3(1.79, 11.9, "Green Giant", "Green beans"), can4("Del Monte", "Creamed Corn");
   can4.setPrice(2.49);
   can4.setSize(13.4);
  
   cout << "Can 1: Can "; can1.displayArray();
   cout << "\nCan 2: Can "; can2.displayArray();
   cout << "\nCan 3: Can "; can3.displayArray();
   cout << "\nCan 4: Can "; can4.displayArray();
  
   return 0;
}

Thanks

Answer 1

#ifndef ITEM_H
#define ITEM_H

#include <string>

using std::string;
using std::cout;

class Can {
private:
    double price = 0.0;
    string company;
    string content;
    double size = 0.0;
public:
    Can() {
        price = 0.99;
        company = "Goyo";
        content = "Black Beans";
        size = 13.0;
    }

    Can(double p, double s, string com, string cont) {
        price = p;
        size = s;
        company = com;
        content = cont;
    }

    Can(string com, string cont) {
        company = com;
        content = cont;
    }

    double getPrice() {
        return price;
    }

    string getCompany() {
        return company;
    }

    string getContent() {
        return content;
    }

    double getSize() {
        return size;
    }

    void setPrice(double p) {
        price = p;
    }

    void setCompany(string com) {
        company = com;
    }

    void setContent(string cont) {
        content = cont;
    }

    void setSize(double s) {
        size = s;
    }

    void displayArray() {
        cout << "[Company = " << company << ", Content = " << content << ", Size = " << size << ", Price = " << price
             << "]";
    }
};

#endif