f0907.cpp

it is a usefull thing

//=====================================
// f0907.cpp
// initialization of class members
//=====================================
#include<iostream>
using namespace std;
//-------------------------------------
class StudentID{
  int value;
public:
  StudentID(int id=0){
    value=id;
    cout <<"Assigning student id " <<value <<endl;
  }
};//-----------------------------------
class Student{
  string name;
  StudentID id;
public:
  Student(string n="no name", int ssID=0):id(ssID),name(n){
    cout<<"Constructing student "<<n<<"\n";
  }
};//-----------------------------------
int main(){
  Student s("Randy", 98);
  Student t("Jenny");
}//====================================