Question

What is the output of the following C++ program?

#include
#include

using namespace std;

class baseClass
{
public:
void print() const;
baseClass(string s = " ", int a = 0);
//Postcondition: str = s; x = a;

protected:
int x;

private:
string str;
};

class derivedClass: public baseClass
{
public:
void print() const;
derivedClass(string s = "", int a = 0, int b = 0);
//Postcondition: str = s; x = a; y = b;
private:
int y;
};

int main()
{
baseClass baseObject("This is the base class", 2);
derivedClass derivedObject("DDDDDD", 3, 7);

baseObject.print();
derivedObject.print();

system("pause");

return 0;
}
void baseClass::print() const
{
cout << x << " " << str << endl;
}

baseClass::baseClass(string s, int a)
{
str = s;
x = a;
}

void derivedClass::print() const
{
cout << "Derived class: " << y << endl;
baseClass::print();
}

derivedClass::derivedClass(string s, int a, int b) :
baseClass("Hello Base", a + b)
{
y = b;
}

Answer 1

Answer:

0 This is base class

Derived class: 9

16 Hello Base

Explanation:

The header files #include <iostream> #include <string> was wrongly included in the question this had to be edited.

After properly editing the programme to remove errors, the expected output when you run the code is:

0 This is base class

Derived class: 9

16 Hello Base