Expected output of the program - c program, C/C++ Programming

Expected output of the program:

1. Consider the following programs. For each, indicate whether the program is correct. If yes, what is the expected output? If not, what is the error? (Hint: remember the discussion about scope and how curly braces { } form a new scope.)

a)

            #include

            int main()

            {

                        int my_var(19);

                        my_var += 2;

                        char my_var('a');

                        std::cout << my_var << std::endl;

                        return 0;

            }

b)

            #include

            int main()

            {

                        int my_var(19);

                        my_var += 2;

                        {

                                    char my_var('a');

                                    std::cout << my_var << std::endl;

                        }

                        return 0;

            }

c)

            #include

            int my_var = 23;

            int main()

            {

                        int my_var(19);

                        my_var += 2;

                        {

                                    char my_var('a');

                                    std::cout << my_var << std::endl;

                                    std::cout << ::my_var << std::endl;

                        }

                        return 0;

            }

2. What is the expected output of the following code snippet if the user enters the following values for "number":

            a) 0

            b) 2

            c) 10

#include

int main()

{

            int number;

            std::cout << "Enter a number : ";

            std::cin >> number;

            switch(number) {

                        case 0:

                                    std::cout << "Zero\n";

                                    break;

                        case 1:

                                    std::cout << "One\n";

                        case 2:

                                    std::cout << "Two\n";

                        case 3:

                                    std::cout << "Three\n";

                                    break;

                        case 4:

                                    std::cout << "Four\n";

                                    break;

                        default:

                                    std::cout << "Less than zero or greater than four\n";           

            }

            return 0;

}

3. Consider the following code snippet:

            int *p;

            int i;

            int k;

            i = 42;

            k = i;

            p = &i;

            (i) Assume that the above code snippet is followed by the following statements (each of them separately). For the statements that you believe are correct and will compile, what would the expected values of i and k be in each case? If you believe there is a compile-time error in any of the cases, please indicate this and briefly explain your answer.

1.*p = 10;

2.   *k = 100;

3.   p = 4532;

4.   k = 75;

 

            (ii) If the statement "p = &i;" is moved and placed right before "k = i;", which of the above answers would change (indicate A, B, C or D)?

Posted Date: 2/11/2013 3:00:22 AM | Location : United States







Related Discussions:- Expected output of the program - c program, Assignment Help, Ask Question on Expected output of the program - c program, Get Answer, Expert's Help, Expected output of the program - c program Discussions

Write discussion on Expected output of the program - c program
Your posts are moderated
Related Questions
C CODE FOR PEBBLE MERCHANTS PROBLEM

Problem: (a) Show the Java approach to event processing by explaining how event handling works in Java. Make use of a suitable example to support your answer. (b) Describe

Project Description: I have a code that works different on 64 bit and 32 bit system. Code is relative to some crypt functions, similar, but not equal to: I have to move fr

Develop a client and a server for an instant messaging system based on UDP and IPv4


what would be the best tool for debuggingg memory leaks in c/c++ programming

Problem : (a) Stacks can be implemented using arrays. Write down the following C or C++ function to (i) create a stack (ii) add an element to a stack (push). (b) Expl

Write a ''C'' program to accept any 3 digit integer number from the keyboard and display the word equivalent representation of the given number.

Describe spaghetti programming. - Spaghetti programming refers to codes which tend to get tangled and overlapped throughout the program. - It makes a program complex and ana

direction[] = {L,R,R,L,L,R,R,R,R,L,Z} length[]= {2,2,1,1,1,2,5,2,2,3,1}