Parameterized constructor in cpp/c++

 #include<iostream>
using namespace std;
class prime{
public:
        int id; //Data Member
        string name; //Data Member
        prime(int value, string s_name){//Parameterized Constructor
                id = value;
                name = s_name;
        }
        void display(){
                cout<<"Id is: "<<id<<endl;
                cout<<"Name is: "<<name<<endl;
        }
};
int main()
{
        int num;
        string name;
        cin>>num;
        cin>>name;
       // prime obj(120, "Bangladesh");
        prime obj = prime(num, name);
        obj.display();
        return 0;
}

Youtube video link: https://www.youtube.com/watch?v=fEnIx3lbXO4&list=UUkE_J-tXiqxzASO6nlB8D6w&index=2