C++ Answers

Any four challenges faced while selecting program development tools

Consider the code snippet given below:-

[Assume the necessary header files and namespaces included]

int x=10;

int main()

{   int x=20;

{ int x=30;

     }

       return 0;

}

Include the ‘cout’ statements at appropriate places in the program to get the output

 10 20 30

What are manipulators? Write a cout statement using manipulator to print a float number right justified in the width of 10 columns with precision of 2 digits.

“OOP follows the bottom up approach of programming” Explain in short

Can a member function be declared as private member of a class? How can it be accessed?

Write the function for the following operations, using appropriate OOP concept such that the code is minimized.

Find product of two numbers

Find product of three numbers.

Find product of four numbers

Give the syntax for pass by reference? Compare pass by reference and pass by pointer(address), and conclude which one is preferable and why?