Constructors interview questions

A destructor name must be

1. same as class name prefixed by tilde (~) character
2. same as class name
3. same as any other member function name
4. none of the given

Which of the following prototype can be a copy constructor of class myclass?

1. myclass (myclass & ×)
2. myclass copy (myclass a)
3. int copy (myclass mc)
4. myclass (int myclass)

A copy constructor is invoked when

1. an object is passed by reference to constructor
2. a member function returns an object
3. an object is passed as a parameter to any of the member function
4. all of the above

Which of the following is not true?

1. Destructors cannot be overloaded
2. Constructor can have parameters
3. Constructor is executed automatically
4. Constructor cannot be Overloaded

Which of the following is false?

1. Constructor and member function have same name
2. Class and destructor have same name
3. Class and constructor have same name
4. Constructor and destructor have same name

Which of the following is automatically executed when the control reaches the end of class scope?

1. Inline function
2. Member function
3. Destructor
4. Constructor

Which of the following is a function that removes the allocated memory of an object?

1. Copy constructor
2. Member function
3. Destructor
4. Constructor

Which of the following is true?

1. The constructor function can be overloaded
2. The constructor is executed automatically
3. A constructor can have parameter list
4. All the given are true

Which one of the following initializes a class object and allocates memory space?

1. Member function
2. Constructor
3. Destructor
4. None of the given

When a class object goes out of scope, the function that gets executed is ____

1. Constructor
2. Destructor
3. Friend
4. Inline

Which is executed automatically when the control reaches the end of the class scope?

1. Constructor
2. Destructor
3. Overloading
4. Copy constructor

The special character related to destructor is ___

1. +
2. !
3. ?
4. ~

The constructor without any parameter is called as ___

1. Initial constructor
2. Parameterized constructor
3. Default constructor
4. Instance parameter

The constructor defined by the computers in the absence of user defined constructor is ____

1. Copy
2. Abstract
3. Default
4. Destructor

The constructors defined by the computers in the absence of user defined constructor is called as ____

1. Non-parameterized
2. Default
3. Compiler generated
4. All of these

How many destructors a class can have?

1. 1
2. 2
3. 3
4. 4

Constructor should be declared under the scope ___

1. Public
2. Private
3. Protected
4. Pointer

Which of the following cannot have arguments?

1. Operator overloading
2. Function overloading
3. Constructor
4. Destructor

Which of the following do not return any value ____

1. Constructor and destructor
2. Friend functions
3. Inline functions
4. Member functions

When an instance of a class comes into scope, the function that executed is ____

1. Destructor
2. Constructor
3. Inline
4. Friend

The destructor is prefixed by the character ___

1. ~
2. %
3. #
4. &

Which one of the following is automatically executed when an object is created?

1. Constructor
2. Destructor
3. Inline function
4. Member function

The name of constructor must be ___

1. Same as object name
2. Same as one of the member function
3. Same as class name
4. None of the given

When an object is passed by reference to constructor, the constructor that is executed is _____

1. Inline
2. Default
3. Static
4. Copy