Object Oriented Programming MCQs

Page No. 33

From which index does the array of objects start?


a0

✓


b1

✖


c2

✖


d3

✖


View Answer 0

Can we have two dimensional object array?


aYes, always

✓


bYes, only if primitive type array

✖


cNo, since two indices are impossible

✖


dNo, never

✖


View Answer Yes, always

If an array of objects is of size 10 and a data value have to be retrieved from 5th object then ________________ syntax should be used.


aArray_Name[4].data_variable_name;

✓


bData_Type Array_Name[4].data_variable_name;

✖


c Array_Name[4].data_variable_name.value;

✖


d Array_Name[4].data_variable_name(value);

✖



The Object array is created in _____________________


aHeap memory

✓


bStack memory

✖


cHDD

✖


dROM

✖


View Answer Heap memory

The objects in an object array _______________________


aCan be created without use of constructor

✖


bCan be created without calling default constructor

✓


c Can’t be created with use of constructor

✖


dCan’t be created without calling default constructor

✖



How the objects of array can be denoted?


aIndices

✓


bName

✖


cRandom numbers

✖


d Alphabets

✖


View Answer Indices

If constructor arguments are passed to objects of array then ____________ if the constructors are overloaded.


aIt is mandatory to pass same number of arguments to all the objects

✖


bIt is mandatory to pass same type of arguments to all the objects

✖


cIt is not mandatory to call same constructor for all the objects

✓


dIt is mandatory to call same constructor for all the constructors

✖



When are the array of objects without any initialization useful?


aWhen object data is not required just after the declaration

✓


bWhen initialization of object data is to be made by the compiler

✖


cWhen object data doesn’t matter in the program

✖


dWhen the object should contain garbage data

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Which is the condition that must be followed if the array of objects is declared without initialization, only with size of array?


aThe class should have separate constructor for each object

✖


bThe class must have no constructors

✖


cThe class should not have any member function

✖


d The class must have a default or zero argument constructor

✓



If array of objects is declared as given below, which is the limitation on objects?


aThe objects will have same values

✖


b The objects will not be initialized individually

✓


cThe objects can never be initialized

✖


d The objects will have same data

✖



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