Object Array MCQ

Test your knowledge with important Object Array MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Object Array MCQs at Bissoy

• Is an array of characters always a string?
  ক

  Yes, always

  খ

  Yes, if each character is terminated by null

  গ

  No, since each character is terminated by null

  ঘ

  No, never
• Two dimensional array can’t be initialized with the declaration.
  ক

  True

  খ

  False
• From which index does the array of objects start?
  ক

  0

  খ

  1

  গ

  2

  ঘ

  3
• Can we have two dimensional object array?
  ক

  Yes, always

  খ

  Yes, only if primitive type array

  গ

  No, since two indices are impossible

  ঘ

  No, never
• 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. .data_variable_name; b) Data_Type Array_Name.data_variable_name; c) Array_Name.data_variable_name.value; d) Array_Name.data_variable_name(value);
  ক

  Array_Name.data_variable_name;

  খ

  4

  গ

  4

  ঘ

  4
• The Object array is created in _____________________
  ক

  Heap memory

  খ

  Stack memory

  গ

  HDD

  ঘ

  ROM
• The objects in an object array _______________________
  ক

  Can be created without use of constructor

  খ

  Can be created without calling default constructor

  গ

  Can’t be created with use of constructor

  ঘ

  Can’t be created without calling default constructor
• How the objects of array can be denoted?
  ক

  Indices

  খ

  Name

  গ

  Random numbers

  ঘ

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

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

  খ

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

  গ

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

  ঘ

  It is mandatory to call same constructor for all the constructors
• When are the array of objects without any initialization useful?
  ক

  When object data is not required just after the declaration

  খ

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

  গ

  When object data doesn’t matter in the program

  ঘ

  When the object should contain garbage data
• Which is the condition that must be followed if the array of objects is declared without initialization, only with size of array?
  ক

  The class should have separate constructor for each object

  খ

  The class must have no constructors

  গ

  The class should not have any member function

  ঘ

  The class must have a default or zero argument constructor
• What is the type of elements of array of objects?
  ক

  Class

  খ

  Void

  গ

  String

  ঘ

  Null
• Which among the following is a mandatory condition for array of objects?
  ক

  All the objects should be of different class

  খ

  All the objects should be of same program classes

  গ

  All the objects should be of same class

  ঘ

  All the objects should have different data
• What is an array of objects?
  ক

  An array of instances of class represented by single name

  খ

  An array of instances of class represented by more than one name

  গ

  An array of instances which have more than 2 instances

  ঘ

  An array of instances which have different types