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
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

#question.Write a c++ program to accept and print a 1_d array



A: This will turn o_ "name mangling" for func so that one can connect to code compiled by a C compiler.

Question A bank normally updates it's clients accounts at the end of each month.Of the two types of bank accounts:savings and checking, a client must maintain a minimum balance

Spider webs have two types of silk, sticky silk and strength silk, spiders do not move on the sticky silken threads only on the strength threads. Assume one type of spider creates

What do you mean by a sequential access file? - When writing programs which store and retrieve data in a file, it's possible to designate that file into various forms. - A s

It is a class defined in the scope of a function _ any function, whether a member functions or a free function. For instance: // Example : Local class // int f() { c

Addition in a existing c++ unification algorithm Project Description: I have a existing code for a algorithm and need to add two modules into it, it is a unification algorith