C++ Polymorphism Question 2

Introduction

Write a program that defines a base class with a pure virtual member function.

Derive two classes from the base class and override the virtual function behavior.

Create two unique pointers of base class type to objects of these derived classes.

Use the pointers to invoke the proper polymorphic behavior.

You can use the following code structure: 

#include <iostream> 

int main() 
{ 
    //your code here
} 




#include <iostream> 
#include <memory> 

class BaseClass 
{ 
public: 
    virtual void dowork() = 0; 
    virtual ~BaseClass() {} 
}; 

class DerivedClass : public BaseClass 
{ 
public: 
    void dowork() override 
    { 
        std::cout << "Do work from a DerivedClass." << '\n'; 
    } 
}; 

class SecondDerivedClass : public BaseClass 
{ 
public: 
    void dowork() override 
    { 
        std::cout << "Do work from a SecondDerivedClass." << '\n'; 
    } 
}; 

int main() 
{ 
    std::unique_ptr<BaseClass> p = std::make_unique<DerivedClass>(); 
    p->dowork(); 

    std::unique_ptr<BaseClass> p2 = std::make_unique<SecondDerivedClass>(); 
    p2->dowork(); 
} // p1 and p2 go out of scope here



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