Object Oriented Programming MCQs

Page No. 74

If an object is declared inside the function then ____________________ outside the function.


a It can be returned by reference


bIt can’t be returned by reference


cIt can be returned by address


dIt can’t be returned at all



Which is the correct syntax for defining a function which passes an object by reference?


aclassName& functionName ( )


bclassName* functionName( )


cclassName-> functionName( )


d&className functionName()



Which is the correct syntax for returning an object by value?


avoid functionName ( ){ }


bobject functionName( ) { }


cclass object functionName( ) { }


dClassName functionName ( ){ }



Where the temporary objects (created while return by value) are created?Where the temporary objects (created while return by value) are created?


aOutside the function scope


bWithin the function


c Inside the main function


d Inside the calling function


View Answer Within the function

Whenever an object is returned by value ____________________


aA temporary object is created


bTemporary object is not created


cTemporary object may or may not be created


dNew permanent object is created



In which of the following way(s) can the object be returned from a function?


aan only be returned by value


bCan only be returned by reference


cCan be returned either by value or reference


dCan neither be returned by value nor by reference



Assigning objects takes place while passing the arguments.


aTrue


bFalse


cA & B


d None of the above


View Answer False

Assigning reference to an object _________________


aWill create another copy of the object


bWill create two different copies of the object


cWill not create any other copy of the object


dWill not refer to the object



We can assign ______________________


a Value of one reference variable to another


bValue of any object to another


c Value of any type to any object


dValue of non – reference to another reference



How to make more than one object refer to the same object?


aInitialize it to null


b Initialize the object with another at declaration


cUse constructor to create new object


dAssign the address directly



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