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CuriousTab

CuriousTab

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  • Question
  • Which of the following statement is correct about the program given below?
    #include<iostream.h> 
    int main()
    {
        int m = 2, n = 6;
        int &x = m;
        int &y = n;
        m = x++; 
        x = m++;
        n = y++;
        y = n++;
        cout<< m << " " << n; 
        return 0; 
    }


  • Options
  • A. The program will print output 2 6.
  • B. The program will print output 3 7.
  • C. The program will print output 4 8.
  • D. The program will print output 5 9.
  • E. The program will print output 6 10.

  • Correct Answer
  • The program will print output 4 8. 


  • More questions

    • 1. How can we make a class abstract?

    • Options
    • A. By making all member functions constant.
    • B. By making at least one member function as pure virtual function.
    • C. By declaring it abstract using the static keyword.
    • D. By declaring it abstract using the virtual keyword.
    • Discuss
    • 2. Copy constructor must receive its arguments by __________ .

    • Options
    • A. either pass-by-value or pass-by-reference
    • B. only pass-by-value
    • C. only pass-by-reference
    • D. only pass by address
    • Discuss
    • 3. What will happen if a class is not having any name?

    • Options
    • A. It cannot have a destructor.
    • B. It cannot have a constructor.
    • C. It is not allowed.
    • D. Both A and B.
    • Discuss
    • 4. cout is a/an __________ .

    • Options
    • A. operator
    • B. function
    • C. object
    • D. macro
    • Discuss
    • 5. What is the technical word for the function ~CuriousTab() defined in the following program?
      #include<iostream.h> 
      class CuriousTab
      {
          int x, y; 
          public:
          CuriousTab(int xx = 10, int yy = 20 )
          {
              x = xx; 
              y = yy;
          }
          void Display()
          {
              cout<< x << " " << y << endl;
          } 
          ~CuriousTab()
          { } 
      };
      int main()
      {
          CuriousTab objCuriousTab; 
          objCuriousTab.Display(); 
          return 0;
      }

    • Options
    • A. Constructor
    • B. Destructor
    • C. Default Destructor
    • D. Function Template
    • Discuss
    • 6. Which of the following statements is correct?

      1. Once a reference variable has been defined to refer to a particular variable it can refer to any other variable.
      2. A reference is not a constant pointer.

    • Options
    • A. Only 1 is correct.
    • B. Only 2 is correct.
    • C. Both 1 and 2 are correct.
    • D. Both 1 and 2 are incorrect.
    • Discuss
    • 7. Which of the following function / types of function cannot have default parameters?

    • Options
    • A. Member function of class
    • B. main()
    • C. Member function of structure
    • D. Both B and C
    • Discuss
    • 8. How "Late binding" is implemented in C++?

    • Options
    • A. Using C++ tables
    • B. Using Virtual tables
    • C. Using Indexed virtual tables
    • D. Using polymorphic tables
    • Discuss
    • 9. Which of the following is not the member of class?

    • Options
    • A. Static function
    • B. Friend function
    • C. Const function
    • D. Virtual function
    • Discuss
    • 10. What happens when we try to compile the class definition in following code snippet?
      class Birds {};
      class Peacock : protected Birds {};

    • Options
    • A. It will not compile because class body of Birds is not defined.
    • B. It will not compile because class body of Peacock is not defined.
    • C. It will not compile because a class cannot be protectedly inherited from other class.
    • D. It will compile succesfully.
    • Discuss


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