array of classes in C++

After i create an array of a class object how do i access a private member of an element of the array ??

example:

class student
{private:
int ID;
char name;

public:
get_data();
print();
};

student stan[10];

how do i access stan[2].id if i want to change that id # alone ?

I would appreciate the help.

thanks

Stan

Create another function in your public section of your class that changes the id # passed to it, or which gets it from the user(whatever you want). Then use it just like you said before:

Code:

---


stan[2].changeid;

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[edit]

Code:

---

class student
{private:
          int  ID;
          char name;

public:
          get_data();
          print();
          void changeid(int &idnum);
};

void Student::changeid(int &idnum){
        ID = idnum;
}

int main(){
        Student stan[10];
        stan[2].changeid(546);
        return(0);
}

---

[/edit]

You need a set/get member function pair. Something like this:

Code:

---

//in your student.h
class student
{
private:
  int ID;
  char name;
public:
  student();
  ~student();
  void SetID(int NewID);
  int GetID(); 
};

//in your student.cpp
void student::SetID(int NewID)
{
  if(NewID>0) //some form of error checking (probably should check against duplicates, too
  {
      ID=NewID;
  } 
}

int student::GetID()
{
  return(ID);
}

//in you main *.cpp file
student stan[10];

int WhoIsIt=stan[0].GetID();

---