Simple (I hope) c++ question - cout an object of a user defined class

[Guest KeithLovell]

I am not sure if this is the right forum for this question but it is the nearest that I have been able to find.

 

This code was adapted from code supplied in the book c++ for dummies. I would like to be able to output the student id number in the cout statements in main() but cannot figure out how to make it compile (using Visual Studio)

 

#include <cstdio>

#include <cstdlib>

#include <iostream>

using namespace std;

 

int nextStudentId = 1000; // first valid student id

class StudentId

{

public:

// default constructor assigns student-ids sequentially

StudentId()

{

value = nextStudentId++;

cout << "Take next student id " << value << endl;

}

// int constructor allows user to assign id

StudentId(int id)

{

value = id;

cout << "Assign student id " << value << endl;

};

~StudentId()

{

cout << "Destructing student id " << value << endl;

}

protected:

int value;

};

 

class Student

{

public:

Student(const char* pName, int ssId)

: name(pName), id(ssId)

{

cout << "Constructing student " << pName << endl;

name = pName;

semesterHours = 0;

gpa = 0.0;

StudentId id(ssId);

}

Student(const char* pName)

// : name(pName), id(ssId)

{

cout << "Constructing student " << pName << endl;

name = pName;

semesterHours = 0;

gpa = 0.0;

// StudentId id;

}

~Student()

{

cout << "Destructing student " << name << endl;

}

public:

string name;

int semesterHours;

double gpa;

StudentId id;

};

 

 

int main(int nNumberofArgs, char* pszArgs[])

{

// create a couple of students

cout << "Next student id " << nextStudentId << endl;

Student* pS = new Student("Jack", 1234);

 

cout << "This mesage from main after Jack " << pS->name << *(pS->id) << endl; // would like to add the student id here.

 

Student* pS2 = new Student("Scruffy");

cout << "This message from main after Scruffy " << pS2->name << endl; // and here

 

delete pS;

delete pS2;

cout << "Next student id " << nextStudentId << endl;

 

 

 

// wait until user is ready before terminating program

// to allow user to see the program results

cout << "Press Enter to continue..." << endl;

cin.ignore(10, '\n');

cin.get();

return 0;

}

 

 

Can anyone guide me?

 

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