Home » C++ Programming » Constructors and Destructors

What will be the output of the following program? #include class CuriousTabBase { public: CuriousTabBase() { cout<< "Base OK. "; } virtual ~CuriousTabBase() { cout<< "Base DEL. "; } }; class CuriousTabDerived: public CuriousTabBase { public: CuriousTabDerived() { cout<< "Derived OK. "; } ~CuriousTabDerived() { cout<< "Derived DEL. "; } }; int main() { CuriousTabBase *basePtr = new CuriousTabDerived(); delete basePtr; return 0; }

Q: What will be the output of the following program? #include class CuriousTabBase { public: CuriousTabBase() { cout<< "Base OK. "; } virtual ~CuriousTabBase() { cout<< "Base DEL. "; } }; cla…

Base OK. Derived OK. Derived DEL. Base DEL.

Base OK. Derived OK.
Base OK. Derived OK. Base DEL.
Base OK. Derived OK. Derived DEL.
Base OK. Derived OK. Derived DEL. Base DEL.
Base OK. Derived OK. Base DEL. Derived DEL.

Correct Answer: Base OK. Derived OK. Derived DEL. Base DEL.

← Previous Question Next Question→

More Questions from Constructors and Destructors

Which of the following statement is correct about the program given below? #include class CuriousTab { int x, y; public: CuriousTab() { x = 0; y = 0; } CuriousTab(int xx, int yy) { x = xx; y = yy; } CuriousTab(CuriousTab *objB) { x = objB->x; y = objB->y; } void Display() { cout<< x << " " << y; } }; int main() { CuriousTab objCuriousTab( new CuriousTab(20, 40) ); objCuriousTab.Display(); return 0; }
What will be the out of the following program? #include class CuriousTabBase { protected: int x, y; public: CuriousTabBase(int xx = 0, int yy = 0) { x = xx; y = yy; } void Show() { cout<< x * this->y << endl; } }; class CuriousTabDerived { private: CuriousTabBase objBase; public: CuriousTabDerived(int xx, int yy) : objBase(xx, yy) { objBase.Show(); } ~CuriousTabDerived() { } }; int main() { CuriousTabDerived objDev(10, 20); return 0; }
Which of the following constructor is used in the program given below? #include class CuriousTab { int x, y; public: CuriousTab(int xx = 10, int yy = 20 ) { x = xx; y = yy; } void Display() { cout<< x << " " << y << endl; } ~CuriousTab() { } }; int main() { CuriousTab objCuriousTab; objCuriousTab.Display(); return 0; }
What is the technical word for the function ~CuriousTab() defined in the following program? #include class CuriousTab { int x, y; public: CuriousTab(int xx = 10, int yy = 20 ) { x = xx; y = yy; } void Display() { cout<< x << " " << y << endl; } ~CuriousTab() { } }; int main() { CuriousTab objCuriousTab; objCuriousTab.Display(); return 0; }

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion