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Authors:
Walter Savitch ,julia Lobur
Chapter:
Inheritance
Exercise:
Self-test Exercises
Question:1 | ISBN:9780321531346 | Edition: 7

Question

Is the following program legal (assuming appropriate #include and using

directives are added)?

void show_employee_data(const Employee object);

int main( )

{

HourlyEmployee joe("Mighty Joe",

"123-45-6789", 20.50, 40);

SalariedEmployee boss("Mr. Big Shot",

"987-65-4321", 10500.50);

show_employee_data(joe);

show_employee_data(boss);

return 0;

}

void show_employee_data(const Employee object)

{

cout << "Name: " << object.get_name( ) << endl;

cout << "Social Security Number: "

<< object.get_ssn( ) << endl;

}





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Answer

Yes.


You can plug in an object of a derived class for a parameter of the base class type.

An HourlyEmployee is an Employee. A SalariedEmployee is an Employee.





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