String operations using multilevel inheritance in C++

• https://monitechvenkat1620.blogspot.com

• Program :

#include<iostream.h>
#include<conio.h>
#include<string.h>
class A
{
public:
char a[20], b[20];
int l;
void getdata()
{
cout<<"\n Enter A :";
cin>>a;
}
};
class B: public A
{
public:
void cpy()
{
srtcpy(b,a);
cout<<"\n string copy:"<<b;
cout<<"\n string duplicate :"<<strdup(a);
cout<<"\n string uppercase :"<<strupr(a);
}
};
class C: public A
{
public:
void len()
{
l=strlen(a);
cout<<"\n string length:"<<l;
cout<<"\n string lowercase :"<<strlwr(a);
cout<<"\n string reverse :"<<strrev(a);
}
};
void main()
{
clrscr();
B obj1;
C obj2;
obj1.getdata();
obj1.cpy();
obj2.getdata();
obj2.len();
getch();
}