Computers and Technology, 24.06.2021 21:20 mitch80
Below, suppose that you have the following classes: classA and classB. Write the class into a header that is called from main. Be sure to #include , using namespace std; and any additions such as #include "pch. h" are present.
class classA
{
public:
virtual void print() const;
void doubleNum();
classA(int a = 0);
private:
int x;
};
void classA::print() const
{
cout << "ClassA x: " << x << endl;
}
void classA::doubleNum()
{
x = 2 * x;
}
classA::classA(int a)
{
x = a;
}
class classB: public classA
{
public:
void print() const;
void doubleNum();
classB(int a = 0, int b = 0);
private:
int y;
};
void classB::print() const
{
classA::print();
cout << "ClassB y: " << y << endl;
}
void classB::doubleNum()
{
classA::doubleNum();
y = 2 * y;
}
classB::classB(int a, int b) : classA(a)
{
y = b;
}
What is the output of the following function main?
int main()
{
classA *ptrA;
classA objectA(2);
classB objectB(3, 5);
ptrA = &objectA;
ptrA->doubleNum();
ptrA->print();
cout << endl;
ptrA = &objectB;
ptrA ->doubleNum();
ptrA->print();
cout << endl;
return 0;
}
Answers: 1
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Below, suppose that you have the following classes: classA and classB. Write the class into a header...
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