C++ Program to concept of multilevel inheritance

Program -

#include<iostream.h>

#include<conio.h>

class abc

{

char name[20];

public:

void input()

{

cout<<"enter the name==>";

cin>>name;

}

void print()

{

cout<<"\n\n";

cout<<"name is"<<name<<endl;

}

};

class sus:abc

{

int roll;

public:

void getdata()

{

abc::input();

cout<<"enter the number==>";

cin>>roll;

}

void putdata()

{

abc::print();

cout<<"roll number is"<<roll<<endl;

}

};

class as:private sus

{

int marks;

public:

void input()

{

getdata();

cout<<"enter the marks==>";

cin>>marks;

}

void print()

{

putdata();

cout<<"marks obtained are"<<marks<<endl;

}

};

void main()

{

clrscr();

as a;

a.input();

a.print();

getch();

}

Output - 

enter the name==>balkar

enter the number==>12

enter the marks==>88

name is balkar

roll number is 12

marks obtained are 88