#include<iostream.h>
#include<conio.h>
class Student
{
protected:
int rollno;
int marks;
public:
void getdata()
{
cout<<"\nEnter roll no.:";
cin>>rollno;
cout<<"\nEnter marks:";
cin>>marks;
}
};
class detail:public Student
{
public:
void display()
{
cout<<"\nto number in all subject:"<<marks;
cout<<"\nroll no.:"<<rollno;
}
};
void main()
{
details ob1;
ob1.getdata();
ob1.display();
getch();
}