confused on const object or const member function

[deepak_kr_mehta]

hello sir
i m confused with concept name like which is const object and which is const member function the code is below

#include<iostream>
#include<conio>
class student
{
int id;
public:
void set(int i){
    id=i;
}
void display()const    //is it const object or const member function
{
cout<<id;
}
};

[Valmont]

Bye.

[redhead]

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