Object Oriented Programming MCQs

Page No. 17

The destructors _____________________


aCan have maximum one argument


bCan’t have any argument


c Can have more than one argument


dCan’t have more than 3 arguments



What is the sequence of destructors call?


a Same order as that of the constructors call


bRandom order


c According to the priority


d) Revere of the order of constructor call



Which among the following is correct syntax for the destructors?


aclassname()


b()classname


cclassname()


d-classname()


View Answer classname()

Which among the following represents correct constructor?


a()classname


b ~classname()


c–classname()


d classname()


View Answer classname()

Which among the following best describes destructor?


aA function which is called just before the objects are destroyed


bA function which is called after each reference to the object


cA function which is called after termination of the program


dA function which is called before calling any member function



Which among the following best describes the constructors?


a A function which is called whenever an object is referenced


b A function which is called whenever an object is created to initialize the members


cA function which is called whenever an object is assigned to copy the values


dA function which is called whenever an object is to be given values for members



What happens when an object is passed by reference?


aDestructor is not called


bDestructor is called at end of function


cDestructor is called when function is out of scope


dDestructor is called when called explicitly



When an object is passed to a function, its copy is made in the function and then ______________


aThe destructor of the copy is called when function is returned


bThe destructor is never called in this case


cThe destructor is called but it is always implicit


dThe destructor must be user defined



Which class destructor will be called first, when following code go out of scope?


a~A()


b~B()


c~C()


d~B() and ~C()


View Answer ~C()

Which among the following is correct for the destructors concept?


a Destructors can be overloaded


bDestructors can have only one parameter at maximum


cDestructors are always called after object goes out of scope


dThere can be only one destructor in a class



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