C++ Virtual Functions Animal Zoo Challenge

Question

can someone please HALP

#include <iostream>
using namespace std;

class Animal
{
public:
int x;
string name;
//your code goes here
void speak(){
cout << &name <<end;
}
};
class Dog: public Animal
{
public:
void speak() {
cout <<"Woof!"<<endl;
}
};
class Cat: public Animal
{
public:
void speak() {
cout <<"Meaw!"<<endl;
}
};

int main() {
Cat c1;
c1.name = "Fluffy";
Dog d1;
d1.name = "Bingo";

Animal *a1 = &c1;
Animal *a2 = &d1;

Animal* arr[] = {a1, a2};
for(int i=0;i<2;i++){
arr[i]->speak();
}
}

Answer 1

//your code goes here
void speak(){
cout << name << endl; //debug
}

Answer 2

You have couple of errors in the code. Your speak function in Animal class should be declared as virtual because it allows it to be owerridden in derived classes.

virtual void speak(){
cout << name << endl;
}

Then for Dog and Cat respectively:

void speak() override {
cout << "Woof!" << endl;
}

void speak() override {
cout << "Meaw!" << endl;
}

Answer 3

Worng way:-
void speak(){
cout << &name << endl; //debug
}

correct way :-
virtual void speak(){
cout << name << endl; //debug
}

if you use '&' with name it will return address value which store in heaps