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Classes and Objects Interview Questions

MCQ Question 1 of 10

Which keyword is used to define a class in C++?

structclassobjectdefine

Which of the following correctly creates an object of class Car?

Car();Car car;class Car car;new Car;

By default, members of a C++ class are:

publicprivateprotectedstatic

Where can member functions of a class be defined?

Only inside the classOnly outside the classBoth inside and outside the classNowhere

Which operator is used to access class members via an object?

*->.::

If Student *ptr; is a pointer to a Student object, how can we call its function show()?

ptr.show();ptr->show();*ptr.show();show.ptr();

What is true about constructors in C++?

They have the same name as the classThey return voidThey can be called explicitly like normal functionsThey must always be private

Which symbol is used before the class name to define a destructor?

~!#%

Which of the following initializes an object car of class Car with a constructor taking two arguments?

Car car = new Car(10, "BMW");Car car(10, "BMW");car.Car(10, "BMW");Car(10, "BMW") car;

When is a destructor of a class called automatically?

When an object is declaredWhen an object goes out of scopeOnly if explicitly calledAt the start of program execution