Class and Object

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    Question 1

    What does the this pointer in C++ represent?

    • Pointer to class name

    • Pointer to current object

    • Pointer to base class

    • Pointer to constructor

    Question 2

    Assume that an integer and a pointer each takes 4 bytes. Also, assume that there is no alignment in objects. Predict the output following program. CPP 
    #include<iostream>
using namespace std;

class Test
{
    static int x;
    int *ptr;
    int y;
};

int main()
{
    Test t;
    cout << sizeof(t) << " ";
    cout << sizeof(Test *);
}
    • 12 4
    • 12 12
    • 8 4
    • 8 8

    Question 3

    What is the correct way to dynamically create an object in C++?

    • ClassName obj = new ClassName();

    • ClassName *obj = new ClassName();

    • ClassName obj();

    • ClassName = new object();

    Question 4

    Which access specifier allows members to be accessed only within the class?

    • public

    • protected

    • private

    • none of them

    Question 5

    What will be the size of an empty class in C++?

    • 0

    • 1

    • 4

    • compile time error

    Question 6

    A member function can always access the data in __________ , (in C++).
    • the class of which it is member
    • the object of which it is a member
    • the public part of its class
    • the private part of its class

    Question 7

    What will be the output?

    C++ 
    class Test {
    int x; 
};
int main()
{
  Test t;
  cout << t.x;
  return 0;
}

    • 0

    • Garbage Value

    • Compiler Error

    • None of the Above

    There are 7 questions to complete.

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