Which constructor will initialize the base class data member?

1.	Which constructor will initialize the base class data member?
A.	class
B.	derived class
C.	base class
D.	All of above
E.	None of these
Answer» D. All of above

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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; class student { protected: int Rollno; public: void get_Rollno(int num) { Rollno = num; } void put_Rollno(void) { } }; class test:public student { protected: float Subject1,Subject2; public: void get_mark(float num1, float num2) { Subject1 = num1; Subject2 = num2; } void put_marks() { } }; class sports { protected: float score; public: void getscore(float s) { score = s; } void putscore(void) { } }; class result: public test, public sports { float total; public: void display(void); }; void result::display(void) { total = Subject1 + Subject2 + score; put_Rollno(); put_marks(); putscore(); cout << "Total Score = " << total << " n"; } int main() { result student; student.get_Rollno(101); student.get_mark(50.25, 42.52); student.getscore(7.0); student.display(); return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; class BaseClass { public: virtual void print() const = 0; }; class DerivedClassA : virtual public BaseClass { public: void print() const { cout << " 5 "; } }; class DerivedClassB : virtual public BaseClass { public: void print() const { cout << "3"; } }; class Multiple : public DerivedClassA, DerivedClassB { public: void print() const { DerivedClassB::print(); } }; int main() { Multiple both; DerivedClassA objectA; DerivedClassB objectB; BaseClass *array[ 3 ]; array[ 0 ] = &both; array[ 1 ] = &objectA; array[ 2 ] = &objectB; for ( int K = 0; K < 3; K++ ) array[ K ] -> print(); return 0; } </pre>

Which constructor will initialize the base class data member?

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