How do I print a variable from main with a function in a class, Help understanding OOP c++

Section 9(1/4) out of 11 of my c++ introduction webclass;

I have no idea what I'm doing. I'm unsure even of what terms to search for(first touch with OOP).

- I need to print the cin in main with a function in a class, So far I have come up with a class with a string variable and a function that do nothing;

#include <iostream>
#include <string>
using namespace std;
        class printclass 
    {
        public:        
        string array;
        void print(); 
    };

    void printclass::print()
    {
        cout << array;
    }

Main program(cannot be edited);

   int main()
{
  char array[50];

  cout << "Enter string:";
  cin.get(array, 50);

  printclass printer;
  printer.print(array);
}

It is my understanding that the printclass printer; creates an object 'printer' with the printclass class and thus knows how to use the functions in the class on sort-of a blank page that is declared with the call, am I far off?

How do I print the value of the array in main with the function?

The exercise has been translated from finnish, please excuse blunt grammar and user stupidity. Thank you for your time!