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
padovan string generation till 40

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes

Calculate the salary if the person work 8 hours/day and the salary/hour is RM5.20 - UML class diagaram -Class -Exception handling/assertion

A string S is said to be "Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the asci

write a c++ program for pebble merchant

Define the System Oriented Data Files? System-oriented data files are further closely related to the computer's operating system than Stream- oriented data files and they are s

Write a function that takes in a number n and divides the screen into n vertical bars, alternating black and white. (What should you do if someone puts in n=0 or n=-99?)

1) Database: The database needs to be used for persistent storage of cars. For details of what information should be stored in the database, please see the description above. You


The probabilistic Hough transform uses random sampling instead of an accumulator array. In this approach the number of random samples r, is not specified in the OpenCV call, but is