// inheritance example
#include<iostream.h>
#include<conio.h>
class demo1
{
public:void add()
{
int a,b,ans;
a=5;
b=6;
ans=a+b;
cout<<"\nAdd="<<ans;
}
};
class demo2:public demo1
{
public:void sub()
{
int a,b,ans;
a=5;
b=10;
ans=a-b;
cout<<"Sub="<<ans;
}
};
void main()
{
clrscr();
demo2 d2;
d2.sub();
d2.add();
getch();
}

/* 
----OUTPUT----
Add= 11
Sub= -5
*/