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CuriousTab

CuriousTab

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  • Question
  • Which of the following statements is incorrect?


  • Options
  • A. Friend keyword can be used in the class to allow access to another class.
  • B. Friend keyword can be used for a function in the public section of a class.
  • C. Friend keyword can be used for a function in the private section of a class.
  • D. Friend keyword can be used on main().

  • Correct Answer
  • Friend keyword can be used on main()


  • Objects and Classes problems


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    • 1. Which of the following statements is correct?

    • Options
    • A. Data items in a class must be private.
    • B. Both data and functions can be either private or public.
    • C. Member functions of a class must be private.
    • D. Constructor of a class cannot be private.
    • Discuss
    • 2. Which of the following keywords is used to control access to a class member?

    • Options
    • A. Default
    • B. Break
    • C. Protected
    • D. Asm
    • Discuss
    • 3. Which of the following can access private data members or member functions of a class?

    • Options
    • A. Any function in the program.
    • B. All global functions in the program.
    • C. Any member function of that class.
    • D. Only public member functions of that class.
    • Discuss
    • 4. Which of the following means "The use of an object of one class in definition of another class"?

    • Options
    • A. Encapsulation
    • B. Inheritance
    • C. Composition
    • D. Abstraction
    • Discuss
    • 5. Which of the following is the only technical difference between structures and classes in C++?

    • Options
    • A. Member function and data are by default protected in structures but private in classes.
    • B. Member function and data are by default private in structures but public in classes.
    • C. Member function and data are by default public in structures but private in classes.
    • D. Member function and data are by default public in structures but protected in classes.
    • Discuss
    • 6. Constructor is executed when _____.

    • Options
    • A. an object is created
    • B. an object is used
    • C. a class is declared
    • D. an object goes out of scope.
    • Discuss
    • 7. Which of the following statements is correct when a class is inherited privately?

    • Options
    • A. Public members of the base class become protected members of derived class.
    • B. Public members of the base class become private members of derived class.
    • C. Private members of the base class become private members of derived class.
    • D. Public members of the base class become public members of derived class.
    • Discuss
    • 8. How many objects can be created from an abstract class?

    • Options
    • A. Zero
    • B. One
    • C. Two
    • D. As many as we want
    • Discuss
    • 9. Which of the following statement is correct about the program given below?
      #include<iostream.h> 
      int CuriousTabFunction(int m)
      {
          m *= m;
          return((10)*(m /= m)); 
      }
      int main()
      {
          int c = 9, *d = &c, e;
          int &z = e;
          e = CuriousTabFunction(c-- % 3? ++*d :(*d *= *d));
          z = z + e / 10;
          cout<< c << " " << e;
          return 0;
      }

    • Options
    • A. It will result in a compile time error.
    • B. The program will print the output 64 9.
    • C. The program will print the output 64 10.
    • D. The program will print the output 64 11.
    • Discuss
    • 10. What will be the output of the following program?
      #include <iostream.h> 
      enum xyz 
      {
          a, b, c
      }; 
      int main()
      {
          int x = a, y = b, z = c; 
          int &p = x, &q = y, &r = z; 
          p = z; 
          p = ++q;
          q = ++p;
          z = ++q + p++; 
          cout<< p << " " << q << " " << z;
          return 0; 
      }

    • Options
    • A. 2 3 6
    • B. 4 4 7
    • C. 4 5 8
    • D. 3 4 6
    • Discuss


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