Cstrctor Dstrctor I need help

Question

Drag and drop from the options below to declare a ''B'' class with its own constructor and a ''D'' class with its own constructor, where ''D'' inherits ''B''.

_____B {
public:
_____() {
cout << "B's constructor"; }
};
class D : ______ B {
_____() {
cout << "D's constructor"; }
};

a.B b.this c.public d.class e.D f. protected

Answer 1

class B {
public:
B() {
cout << "B's constructor";
}
};

class D: public B {
D() {
cout << "D's constructor";
}
};

The class B has a constructor, which is a method without return type which has the name of the class. This method can be overload.

class D, publicly inherit from class B.

Same thing for the constructor.

Answer 2

Xavier Heugue Why publicly and not protectedly?

Answer 3

This has not a definite answer. D can inherit from B publicly or protectedly, there is nothing stopping it.

Answer 4

It depends if the visibility is needed outside the namespace, but by default, publicly because we want to see the parent's methods

Answer 5

thanks all your hue support