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
Project Description: I want an experienced programmer to program an RFID tag that will be read (maybe also written), and perform a call to a Filmmaker Pro 13 database. Skills


write an algorithm for multiplication of two sparse matrices using linked lists

I need to program a microprocessor that would have a temperature, gas, humidity and PIR sensor connected to it. It would send the data to a PC via a Zigbee and receive commands fro

C program to count the words: void CountWords();          void main()          {             printf("\n\tcount the words and enter string\n\n\n");             Count

I need to include files so you can understand easier.

C Program for EVEN & ODD NO IN ANY MATRICES #include stdio.h> #include conio.h> void main() {           int a[100][100];           int i=0,j=0,r,c,even=0,odd=0;

A company needs 200 pencils per year . you cannot simply use this price as the cost of pencils two years from now. Because of inflation the cost is likely to be higher than it is

how do you declare an integer variable

Inheritance is the process of forming new classes, called derived classes, from existing classes or base classes. The derived class inherits all the capabilities of the base class,