Object Oriented Programming MCQs

Page No. 35

Object cout and cin _________________


a Can be used directly with << and >> symbols respectively


bCan be used directly with >> and << symbols respectively


cMust be used as a function which accepts 2 arguments


dMust be used as a function which accepts 3 arguments



What are singleton objects?


aThe only two objects of a class throughout the program


bThe only object of a class throughout the program


cThe objects that are alive throughout the program


dThe objects that are created and then deleted without use



A factory object is used ______________________


aTo create new classes


bTo create new function


cTo create new data members


dTo create new objects


View Answer To create new objects

Which object can be used to contain other objects?


aFirst class object


bDerived class object


cContainer object


dEnclosure object


View Answer Container object

Immutable object are used ______________________


aTo set up as a fixed state


bTo set up variable object


cTo set up an object of abstract class


dTo set up an object of derived class



What is function object?


aAn object with a single function


bAn object with only functions


c An object with more than one function


dAn object with no functions



Which among the following is not a property of an object?


aIdentity


bProperties


cAttributes


dNames


View Answer Names

Which among the following is the main use of object?


aTo create instance of a function


bTo create instance of a program


c To create instance of class


dTo create instance of structures



Is it necessary that all the abstract methods must be defined from an abstract class?


aYes, depending on code


bYes, always


c No, never


dNo, if function is not used, no definition is required


View Answer Yes, always

How many abstract classes can a single program contain?


aAt most 1


bAt least 1


cAt most 127


dAs many as required


View Answer As many as required

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