Containership in C++

In this tutorial, we will be discussing a program to understand containership in C++.

The parameter if a certain class contains another class is called as containership. The inside class is called contained class, while the class in which it is present is called container class.

Example

#include <iostream>
using namespace std;
class first {
   public:
   first(){
      cout << "Hello from first class\n";
   }
};
//container class
class second {
   first f;
   public:
   //constructor
   second(){
      cout << "Hello from second class\n";
   }
};
int main(){
   second s;
   return 0;
}

Output

Hello from first class
Hello from second class