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:
[edit]Code:stan[2].changeid;
[/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); }
Last edited by Traveller; 05-29-2002 at 08:22 PM.
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();
