"<<" operand doesn't work with an array of string in visual studio2012 [duplicate]

Question

This question already has answers here:

Why is writing a std::string to cout causing an unknown operator << error? (2 answers)

Closed 8 years ago.

This is the class "Date.h"

class Date
{
    private: 
        int day;
        int month;
        int year;

    public:         
        void PrintDateV2();
        Date(int, int, int);
        ~Date();

};

This is "Date.cpp" with the implementation of the specified function that doesnt work

void Date::PrintDateV2()
{
    string months[12]={"January", "February", "March", "April", "May", "June", "July",           "August", "September", "October", "November", "December"};
   /*line of error*/cout << months[month-1] << endl;//<< ":: " << day << ", " << year << endl;
}

this is the error in visual studio in error list:

no operator "<<" matches these operands operand types are: std::basic_ostream char, std::char_traits> << std::string

Answer 1

You forgot

#include <string>

in your program before using operator<<.