Object Oriented Programming MCQs

Page No. 60

When is the memory allocated for an object?


aAt declaration of object

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bAt compile time

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cWhen object constructor is called

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dWhen object is initialized to another object

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Where is the memory allocated for the objects?


a HDD

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bCache

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cRAM

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dROM

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View Answer RAM

What does memory allocation for objects mean?


aActual creation and memory allocation for object members

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bCreation of member functions

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cCreation of data members for a class

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dActual creation and data declaration for object members

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Which feature of OOP is exhibited by the function overriding?


aInheritance

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bAbstraction

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cPolymorphism

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dEncapsulation

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View Answer Polymorphism

If virtual functions are defined in the base class then _______________


aIt is not necessary for derived classes to override those functions

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bIt is necessary for derived classes to override those functions

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cThose functions can never be derived

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dThose functions must be overridden by all the derived classes

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Abstract functions of a base class _________________


aAre overridden by the definition in same class

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bAre overridden by the definition in parent class

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cAre not overridden generally

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dAre overridden by the definition in derived class

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In Kotlin, the function to be overridden must be ______________


aPrivate

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bOpen

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cClosed

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dAbstract

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View Answer Open

What should be used to call the base class method from the derived class if function overriding is used in Java?


aKeyword super

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bScope resolution

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cDot operator

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dFunction name in parenthesis

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View Answer Keyword super

In Delphi ______________


aMethod overriding is done implicitly

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bMethod overriding is not supported

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cMethod overriding is done with directive override

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dMethod overriding is done with the directive virtually

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In C# ____________________


aNon – virtual or static methods can’t be overridden

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bNon – virtual and static methods only can be overridden

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cOverriding is not allowed

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dOverriding must be implemented using C++ code only

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