Object Oriented Programming MCQs

Page No. 28

All member functions of a local class must be ___________


a Defined outside class body

✖


bDefined outside the function definition

✖


cDefined inside the class body

✓


dDefined at starting of program

✖



What are local classes?


aClasses declared inside a package

✖


bClasses declared inside a function

✓


cClasses declared inside a class

✖


dClasses declared inside structure

✖



A static nested class is _____________ class in behavior that is nested in another _________ class.


aTop level, top level

✓


b Top level, low level

✖


cLow level, top level

✖


d Low level, low level

✖


View Answer Top level, top level

If a declaration of a member in inner class has the same name as that in the outer class, then ________________ enclosing scope.


aOuter declaration shadows inner declaration in

✖


bInner declaration shadows outer declaration in

✓


c Declaration gives compile time error

✖


dDeclaration gives runtime error

✖



Instance of inner class can exist only _______________ enclosing class.


aWithin

✓


bOutside

✖


cPrivate to

✖


dPublic to

✖


View Answer Within

How to create object of the inner class?


aOuterClass.InnerClass innerObject = outerObject.new InnerClass();

✓


b OuterClass.InnerClass innerObject = new InnerClass();

✖


cInnerClass innerObject = outerObject.new InnerClass();

✖


d OuterClass.InnerClass = outerObject.new InnerClass();

✖



A nested class can have its own static members.


aTrue

✖


bFalse

✓


cA & B

✖


dNone of these

✖


View Answer False

How to access static nested classes?


aOuterClass.StaticNestedClass

✓


bOuterClass->StaticNestedClass

✖


cOuterClass(StaticNestedClass)

✖


dOuterClass[StaticNestedClass]

✖



Which among the following is the correct advantage/disadvantage of nested classes?


aMakes the code more complex

✖


bMakes the code unreadable

✖


c Makes the code efficient and readable

✓


dMakes the code multithreaded

✖



Use of nested class ____________ encapsulation.


a Increases

✓


bdecreases

✖


cDoesn’t affect

✖


dSlightly decreases]

✖


View Answer Increases

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