9. Write a C++ program to create multilevel inheritance. (Hint: Classes A1, A2, A3)
#include <iostream>
#include<conio.h>
using namespace std;
class base //single base class
{
public:
int x;
void getdata() {
cout << "Enter value of x= "; cin >> x;
}
};
class derive1 : public base // derived class from base class
{
public:
int y;
void readdata()
{
cout << "\nEnter value of y= "; cin >> y;
}
};
class derive2 : public derive1 // derived from class derive1
{
private:
int z;
public:
void indata() {
cout << "\nEnter value of z= "; cin >> z;
}
void product() {
cout << "\nProduct= " << x * y * z <<endl;
}
};
int main() {
derive2 a; //object of derived class
a.getdata();
a.readdata();
a.indata();
a.product();
return 0;
}
Output:
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