Answer Posted / shafi . shaik

//The Concepts of interface classes in Java (Function
Overriding
#include<iostream.h>
#include<conio.h>
class A
{
public:
virtual void cal()
{
}
};
class B:public A
{
public:
void cal()
{
cout<<"Addition"<<10+20;
}
};
class C:public A
{
public:
void cal()
{
cout<<"Multiplication"<<10*20;
}
};
void main()
{
clrscr();
A *p;
B ob;
C ob1;
p=&ob;
p->cal();
p=&ob1;
p->cal();
getch();
}

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