Multilevel inheritance using string concatenation and string compare in C++

• https://monitechvenkat1620.blogspot.com 

• Program :

#include<iostream.h>
#include<conio.h>
#include<string.h>
class A
{
public:
char a[20], b[20];
void getdata()
{
cout<<"\n Enter A :";
cin>>a;
cout<<"\n Enter B :";
cin>>b;
}
};
class B: public A
{
public:
void cat()
{
srtcat(a, b);
cout<<"\n string concatenate :"<<a;
}
};
class C: public A
{
public:
void cmp()
{
if(strcmp(a, b)==0)
cout<<"\n strings are equal";
else
cout<<"\n strings are not equal";
}
};
void main()
{
clrscr();
B obj1;
C obj2;
obj1.getdata();
obj1.cat();
obj2.getdata();
obj2.cmp();
getch();
}