Q. When a copy constructor may be called?
✅ Correct Answer: (D)
all
Object Oriented Programming (OOP) MCQs | Page - 10
Dear candidates you will find MCQ questions of Object Oriented Programming (OOP) here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. #include<iostream> using namespace std;
class X
{
public:
int x;
};
int main()
{
X a = {10};
X b = a;
cout <<a.x <<" " <<b.x; return 0;
}
class X
{
public:
int x;
};
int main()
{
X a = {10};
X b = a;
cout <<a.x <<" " <<b.x; return 0;
}
✅ Correct Answer: (D)
10 0
Q. Which of the following is true about inline functions and macros.
✅ Correct Answer: (D)
all of the above
Q. What is the difference between struct and class in C++?
✅ Correct Answer: (B)
members of a class are private by default and members of struct are public by default. when deriving a struct from a class/struct, default access-specifier for a base class/struct is public and when deriving a class, default access specifier is private.
Q. Which of the following is true about new when compared with malloc. 1) new is an operator, malloc is a function 2) new calls constructor, malloc doesn't 3) new returns appropriate pointer, malloc returns void * and pointer needs to typecast to appropriate type.
✅ Correct Answer: (C)
1 and 2
Q. When class B is inherited from class A, what is the order in which the constructers of those classes are called
✅ Correct Answer: (A)
class a first class b next
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