OOP2023_P1_B11B12_March27

Which of the following statements about the this pointer is false?

• The this pointer is a keyword in C++ that refers to the object that is currently being operated on.

• The this pointer can be used to access member variables and member functions of the current object.

• The this pointer is not a constant pointer and can be reassigned to point to a different object.

• The this pointer is automatically passed as a hidden argument to all non-static member functions.

Which of the following code snippets correctly uses new and delete to allocate and deallocate a dynamic array of pointers with a size of 5?

• int *arr = new int[5];

  delete[] arr;

• int *arr = new int*[5];

  delete[] arr;

• int *arr = new int*[5];

  delete[] *arr;

• int *arr = new int[5]();

  delete[] arr;

Predict the output of the given code.

• 1 and 3

• Run time error

• 10 and 2

• Compile time error

Predict the output of the given code.

• Default constructor called.

  Parameterized constructor called with 42.

  Destructor called.

  Destructor called.

• Default constructor called.

  Parameterized constructor called with 42.

  Destructor called.

• Default constructor called.

  Destructor called.

  Default constructor called.

  Destructor called.

• Default constructor called.

  Destructor called.

  Parameterized constructor called with 42.

  Destructor called.

Which of the following is true about friend functions in C++?

• They can be called only from within the class

• They cannot be overloaded

• They can be defined in the class or outside the class

• They can be inherited by derived classes